Synonyms for In-formal:

• adj.

  •breezy (adjective)
  • buoyant,
  • debonair,
  • sprightly,
  • jaunty,
  • free and easy,
  • sparkling,
  • casual,
  • informal,
  • racy,
  • light,
  • spirited,
  • peppy,
  • vivacious,
  • spicy,
  • animated,
  • lively,
  • sunny,
  • blithe,
  • gay,
  • carefree,
  • easy-going,
  • effervescent,
  • cheerful,
  • airy.
  •casual (adjective)
  • cursory,
  • insouciant,
  • uninterested,
  • unconcerned,
  • withdrawn,
  • incurious,
  • detached,
  • apathetic,
  • perfunctory,
  • laid-back,
  • offhand,
  • purposeless,
  • indifferent,
  • lackadaisical,
  • aloof,
  • remote,
  • Pococurante.
  •chatty (adjective)
  • conversational,
  • garrulous,
  • loquacious,
  • gossipy,
  • communicative,
  • multieloquent,
  • talky,
  • loose-lipped,
  • gabby,
  • friendly.
  •common (adjective)
  • current,
  • undistinguished,
  • comformable,
  • general,
  • bourgeois,
  • accepted,
  • stereotyped,
  • trite,
  • conventional,
  • workaday,
  • customary,
  • routine,
  • universal,
  • plain,
  • mediocre,
  • typical,
  • trivial,
  • unvaried,
  • daily,
  • habitual,
  • standard,
  • worn-out,
  • simple,
  • homely,
  • stock,
  • probable,
  • prevailing,
  • usual,
  • wearisome,
  • frequent,
  • run-of-the-mill,
  • prosaic,
  • prevalent,
  • passable,
  • stale,
  • hackneyed,
  • commonplace,
  • humdrum,
  • banal,
  • characteristic,
  • regular,
  • monotonous.
  •confabulatory (adjective)
  • vocal,
  • casual conversational,
  • chatty.
  •conversational (adjective)
  • long-winded,
  • verbose,
  • blabby,
  • voluble.
  •democratic (adjective)
  • common,
  • equal,
  • egalitarian,
  • popular,
  • populist,
  • just,
  • autonomous,
  • libertarian,
  • orderly,
  • self-ruling,
  • constitutional,
  • communal,
  • socialist,
  • individualistic.
  •down to earth (adjective)
  • earthy,
  • pragmatic,
  • realistic,
  • real,
  • commonsensical,
  • Sober-minded,
  • reasonable,
  • sensible,
  • plainspoken,
  • levelheaded.
  •easy (adjective)
  • complaisant,
  • mild,
  • suave,
  • affable,
  • gentle,
  • gregarious,
  • good-tempered,
  • gracious,
  • polite,
  • unpretentious,
  • pleasant,
  • unforced,
  • obliging,
  • amiable,
  • sociable,
  • graceful,
  • smooth,
  • undemanding,
  • unanxious,
  • unaffected,
  • tolerant,
  • secure,
  • good-natured,
  • diplomatic,
  • at ease.
  •easygoing (adjective)
  • liberal,
  • indolent,
  • even-tempered,
  • lenient,
  • composed,
  • happy-go-lucky,
  • tranquil,
  • moderate,
  • collected,
  • uncritical,
  • hang-loose,
  • flexible,
  • devil-may-care,
  • self-possessed,
  • placid,
  • serene,
  • amenable,
  • patient,
  • uninhibited,
  • unhurried,
  • outgiving,
  • nonchalant,
  • poised,
  • calm,
  • indulgent,
  • lazy.
  •everyday (adjective)
  • unremarkable,
  • unimaginative,
  • garden variety,
  • normal,
  • average,
  • lowly,
  • middle-of-the-road,
  • per diem,
  • quotidian,
  • dull,
  • unexceptional,
  • whitebread,
  • dime a dozen,
  • vanilla,
  • accustomed,
  • wonted,
  • mainstream,
  • mundane.
  •extemporaneous (adjective)
  • fake,
  • toss out,
  • ad-lib,
  • Autoschediastic,
  • toss off.
  •extemporaneous/extemporary (adjective)
  • off the cuff,
  • spur-of-the-moment,
  • tossed out,
  • unstudied,
  • taking for ride,
  • jamming,
  • unpremeditated,
  • tossed off,
  • thought out loud,
  • unprepared,
  • by ear,
  • winging it,
  • ad hoc,
  • off the top of head,
  • automatic,
  • snap,
  • immediate,
  • on impulse,
  • Improviso,
  • Improvisatory,
  • at first glance,
  • expedient,
  • made-up,
  • ad lib,
  • on-the-spot,
  • impromptu,
  • makeshift,
  • unplanned.
  •familiar (adjective)
  • cozy,
  • tight,
  • old hat,
  • fresh,
  • close,
  • amicable,
  • repeated,
  • smart,
  • cordial,
  • Presuming,
  • dear,
  • palsy,
  • unreserved,
  • native,
  • impudent,
  • thick,
  • snug,
  • unsophisticated,
  • domestic,
  • genial,
  • recognizable,
  • matter-of-fact,
  • presumptuous,
  • household,
  • sassy,
  • nervy,
  • near,
  • wise,
  • buddy-buddy,
  • forward,
  • palsy-walsy,
  • obtrusive,
  • neighborly,
  • known,
  • proverbial,
  • homespun,
  • confidential,
  • humble,
  • chummy,
  • comfortable,
  • officious,
  • intrusive.
  •free (adjective)
  • fancy-free,
  • escaped,
  • permitted,
  • on the loose,
  • on one's own,
  • uncommitted,
  • liberated,
  • unrestricted,
  • at large,
  • at liberty,
  • unconfined,
  • unobstructed,
  • unregulated,
  • unimpeded,
  • able,
  • lax,
  • clear,
  • Allowed,
  • off the hook,
  • unengaged,
  • unfettered,
  • Disengaged,
  • untrammeled,
  • independent,
  • unattached,
  • unhampered,
  • free-spirited,
  • footloose,
  • free-wheeling.
  •free and easy (adjective)
  • boon,
  • free as the wind,
  • nonformal,
  • footloose and fancy-free,
  • free as a bird,
  • convivial.
  •homely (adjective)
  • homelike,
  • modest,
  • comfy,
  • welcoming,
  • unostentatious,
  • unassuming,
  • inelaborate.
  •informal (adjective)
  • easygoing,
  • Familiar,
  • off-the-cuff,
  • frank,
  • congenial,
  • breezy,
  • unconstrained,
  • unofficial,
  • easy,
  • low-pressure,
  • everyday,
  • spontaneous,
  • IMPROV,
  • mixed,
  • intimate,
  • urbane,
  • unrestrained,
  • unfussy,
  • extempore,
  • free,
  • unceremonious,
  • without ceremony,
  • straightforward,
  • homey,
  • unconventional,
  • open,
  • motley,
  • down home,
  • laid back,
  • folksy,
  • sporty,
  • ordinary,
  • natural,
  • mellow,
  • throwaway,
  • free-and-easy,
  • democratic,
  • inconspicuous,
  • colloquial,
  • cool,
  • relaxed,
  • loose.
  •offhand (adjective)
  • cavalier,
  • glib,
  • brusque,
  • extemporary,
  • without preparation,
  • unrehearsed,
  • improvised,
  • off the hip,
  • curt.
  •outgoing (adjective)
  • civil,
  • extrovert,
  • approachable,
  • warm,
  • sympathetic,
  • kind,
  • expansive.
  •sporty (adjective)
  • glittering,
  • flamboyant,
  • Flaunting,
  • brazen,
  • snazzy,
  • loud,
  • jazzy,
  • natty,
  • ornate,
  • glittery,
  • gaudy,
  • glitzy,
  • showy.
  •unconventional (adjective)
  • bizarre,
  • eccentric,
  • irregular,
  • uncommon,
  • unorthodox,
  • unique,
  • beat,
  • nonconformist,
  • far-out,
  • anarchistic,
  • out in left field,
  • off the wall,
  • oddball,
  • way-out,
  • freaky,
  • avant-garde,
  • unusual,
  • offbeat,
  • off the beaten track,
  • original,
  • freakish,
  • individual,
  • atypical,
  • idiosyncratic,
  • uncustomary,
  • kooky,
  • weirdo,
  • kinky,
  • crazy,
  • out of the ordinary.
  •uninhibited (adjective)
  • candid,
  • uncontrolled,
  • unchecked,
  • cut loose,
  • unself-conscious,
  • ungoverned,
  • audacious,
  • unrepressed,
  • unsuppressed,
  • hanging out,
  • unbridled,
  • instinctive,
  • no holds barred,
  • uncurbed.
  •unofficial (adjective)
  • off the record,
  • unsanctioned,
  • private,
  • unconfirmed,
  • uncorroborated,
  • personal.
  •vernacular (adjective)
  • domesticated,
  • ingrained,
  • dialectal,
  • indigenous,
  • vulgar,
  • local,
  • inherent,
  • plebian,
  • idiomatic.

• adv.

  •outdoor (adverb)
  • healthful,
  • nature-loving,
  • mountain,
  • invigorating,
  • outside,
  • garden,
  • out-of-doors,
  • yard,
  • patio,
  • alfresco,
  • hilltop,
  • in the open,
  • out of the house,
  • woods,
  • picnic,
  • rustic.

Antonyms for In-formal:

• adj.

  • breezy
    depressed, heavyhearted, sorrowful, serious, still, gloomy, difficult, calm, peaceful, lethargic, lifeless, quiet, heavy, inactive, apathetic, sad, unhappy.
  • casual
    agitated, upset, painstaking, planned, premeditated, deliberate.
  • chatty
    incompatible, silent, cool, untalkative, unsociable, unfriendly, reserved.
  • common
    different, noteworthy, superior, abnormal, exceptional, noble, high, irregular, rare, unusual, peculiar, unorthodox, original, aristocratic, sophisticated, infrequent, scarce, unfamiliar, valuable, unconventional, uncommon, refined, extraordinary, excellent, cultured.
  • down to earth
    fanciful, idealistic, dreamy.
  • easy
    trying, onery, intricate, uneasy, strict, involved, unleisurely, unpermissive, intolerant, exhausting, hard, laborious, impossible, demanding, arduous, unrelaxed, complex, oppressive, complicated.
  • easygoing
    troubled, violent, nervous, hurried, excited, worried, hyped, critical.
  • everyday
    unexpected, special.
  • extemporaneous/extemporary
    read, written, prepared, Rehearsed.
  • familiar
    cold, ignorant, distant, uncomfortable, new, industrial, alien, aloof, unacquainted, loose, unapproachable, business, unknowledgeable, unknown, unintelligent, strange, unremarkable, stupid, foreign, undistinguished.
  • free
    busy, enslaved, confined, vague, Prevented, expensive, tied-up, high-priced, bound, barred, priced, costly, restricted, ambiguous, mean, closed, scheduled, limited, tight-fisted, Hindered, unclear, occupied, definite, blocked, restrained, niggardly, suppressed.
  • homely
    beautiful, attractive.
  • informal
    ceremonious, formal, buttoned-up, stiff, rigid, official, dressed-up.
  • offhand
    careful, considered, calculated, practiced.
  • outgoing
    arriving, shy, incoming, introverted, reclusive, entering.
  • relaxed
    wild, turbulent.
  • unconventional
    conventional, ordinary, common, usual, standard, regular, normal.
  • uninhibited
    modest, inhibited.
  • unofficial
    authorized, confirmed, authoritative.