Synonyms for Run of the mill:

• adj.

  •average (adjective)
  • boilerplate,
  • tolerable,
  • nowhere,
  • moderate,
  • Familiar,
  • standard,
  • garden variety,
  • mainstream,
  • passable,
  • SOSO,
  • plastic,
  • everyday,
  • garden,
  • general,
  • middling,
  • unexceptional.
  •colorless (adjective)
  • dreary,
  • Unpassioned,
  • vapid,
  • lifeless,
  • tame,
  • characterless,
  • unmemorable,
  • vacuous,
  • insipid,
  • dull,
  • prosaic,
  • run-of-the-mill,
  • lackluster.
  •common (adjective)
  • stale,
  • daily,
  • conventional,
  • bourgeois,
  • stock,
  • hackneyed,
  • stereotyped,
  • workaday,
  • casual,
  • monotonous,
  • worn-out,
  • current,
  • habitual,
  • prevalent,
  • typical,
  • simple,
  • colloquial,
  • universal,
  • natural,
  • informal,
  • prevailing,
  • characteristic,
  • banal,
  • trivial,
  • plain,
  • accepted,
  • homely,
  • unvaried,
  • probable,
  • comformable,
  • trite,
  • wearisome,
  • frequent.
  •commonplace (adjective)
  • matter-of-course,
  • lowly,
  • plebeian,
  • obvious,
  • unnoteworthy,
  • uneventful,
  • pedestrian,
  • widespread,
  • boiler plate,
  • normal,
  • familiar tune,
  • middle-of-the-road,
  • colorless,
  • uninteresting,
  • threadbare,
  • dime-a-dozen,
  • vanilla,
  • starch,
  • mundane,
  • corny.
  •conventional (adjective)
  • doctrinal,
  • straight,
  • insular,
  • narrow,
  • drippy,
  • illiberal,
  • strict,
  • narrow-minded,
  • hidebound,
  • lame,
  • parochial,
  • isolationist,
  • puritanical,
  • in rut,
  • inflexible,
  • conservative,
  • demure,
  • straight-laced,
  • square,
  • moral,
  • obstinate,
  • sober,
  • rube,
  • solemn,
  • stuffy,
  • uptight,
  • not heretical,
  • bigoted,
  • literal,
  • rigid,
  • conforming,
  • dogmatic.
  •dull (adjective)
  • pointless,
  • dismal,
  • unimaginative,
  • flat,
  • tedious,
  • tiresome,
  • abused,
  • usual thing,
  • prosy,
  • tired,
  • dead,
  • oft-repeated,
  • big yawn,
  • jejune,
  • dry,
  • ho hum,
  • repetitious,
  • stupid,
  • longwinded,
  • out-of-date,
  • hoary,
  • prolix,
  • Driveling,
  • heavy,
  • repetitive,
  • blah,
  • uninspiring,
  • arid,
  • soporific,
  • archaic.
  •everyday (adjective)
  • per diem,
  • unremarkable,
  • wonted,
  • quotidian,
  • accustomed,
  • whitebread.
  •formulaic (adjective)
  • mechanical,
  • imitative.
  •general (adjective)
  • extensive,
  • public,
  • generic,
  • broad,
  • inclusive,
  • wide,
  • popular.
  •hackneyed (adjective)
  • antiquated,
  • Overworked,
  • timeworn,
  • outmoded,
  • old-chestnut,
  • well-worn,
  • played-out,
  • old-hat,
  • tripe,
  • old-saw,
  • unoriginal,
  • moth-eaten,
  • obsolete,
  • old,
  • outdated,
  • hokey.
  •mediocre (adjective)
  • fairish,
  • decent,
  • second-rate,
  • inferior,
  • insignificant,
  • indifferent,
  • mean,
  • uninspired,
  • of poor quality,
  • no great shakes.
  •medium (adjective)
  • middle,
  • neutral,
  • par,
  • median,
  • medial.
  •middling (adjective)
  • okay,
  • traditional,
  • all right,
  • modest,
  • good.
  •normal (adjective)
  • acknowledged,
  • methodical,
  • orderly,
  • typic.
  •ordinary (adjective)
  • homespun,
  • unpretentious,
  • household,
  • established,
  • humble,
  • white-bread,
  • settled.
  •Other relevant words: (adjective)
  • average.
  •overused (adjective)
  • platitudinal,
  • stereotypical,
  • stereotypic.
  •pedestrian (adjective)
  • boring,
  • banausic,
  • plodding,
  • inane,
  • monotone,
  • dim,
  • platitudinous,
  • stodgy,
  • truistic,
  • wishy-washy.
  •prevalent (adjective)
  • latest,
  • swinging,
  • now,
  • with it,
  • faddy,
  • regnant,
  • in use,
  • ongoing,
  • up-to-date,
  • state-of-the-art,
  • ubiquitous,
  • trendy,
  • new,
  • rampant,
  • latest word,
  • leading edge,
  • stylish,
  • rife.
  •regular (adjective)
  • bona fide,
  • unvarying,
  • time-honored,
  • lawful,
  • orthodox,
  • approved,
  • proper,
  • sanctioned,
  • correct,
  • classic,
  • legitimate,
  • official,
  • formal.
  •run-of-the-mill (adjective)
  • customary,
  • routine,
  • humdrum,
  • middle of the road,
  • common,
  • medium,
  • commonplace,
  • intermediate,
  • usual,
  • dime a dozen,
  • undistinguished,
  • so-so,
  • fair to middling,
  • mediocre,
  • garden-variety,
  • fair,
  • regular,
  • ordinary.
  •so-so (adjective)
  • adequate,
  • enough,
  • not bad,
  • respectable.
  •standard (adjective)
  • basic,
  • authoritative,
  • regulation,
  • recognized,
  • definitive,
  • canonical,
  • staple,
  • set.
  •stock (adjective)
  • overused.
  •tolerable (adjective)
  • allowable,
  • tidy,
  • sufferable,
  • satisfactory,
  • unimpeachable,
  • sustainable,
  • fairly good,
  • livable,
  • sufficient,
  • better than nothing,
  • supportable,
  • bearable,
  • endurable,
  • goodish,
  • presentable,
  • unexceptionable.
  •trite (adjective)
  • chain,
  • bromidic,
  • shopworn,
  • bathetic,
  • cornball,
  • ready-made,
  • warmed-over,
  • worn,
  • drained,
  • musty,
  • old hat,
  • exhausted,
  • used-up,
  • Mildewed.
  •undistinguished (adjective)
  • unexciting,
  • nothing to write home about,
  • nothing special.
  •unexceptional (adjective)
  • unimpressive.
  •unexciting (adjective)
  • long-winded.
  •unremarkable (adjective)
  • formulaic.
  •usual (adjective)
  • constant,
  • expected,
  • fixed,
  • cut-and-dried,
  • chronic,
  • grind.
  •vulgar (adjective)
  • native,
  • unrefined,
  • vernacular,
  • low,
  • conversational.

Antonyms for Run of the mill:

• adj.

  • average
    atypical, rare, abnormal, unusual, extraordinary, outstanding, infrequent, extreme, exceptional, uncommon, irregular.
  • colorless
    clear, brilliant, colorful, vivid, rich, light, colored, interesting, lively, bright, motley, vibrant, stimulating, intense, distinctive.
  • common
    original, aristocratic, excellent, scarce, superior, valuable, high, different, unconventional, unfamiliar, noteworthy, noble, cultured, refined, peculiar, sophisticated, unorthodox.
  • conventional
    foreign, strange, unique, new, exotic, uncustomary.
  • dull
    exciting, quick, keen, witty, active, lustrous, eventful, knifelike, sharp, vivacious, serrated, sensitive, intelligent, luminous, smart, happy, pointed, pleasant.
  • everyday
    unexpected, special.
  • general
    definite, unknown, unaccepted, limited, private, circumscribed, singular, specific, exact, eccentric, novel, particular, individual.
  • hackneyed
    fresh.
  • mediocre
    first-rate.
  • medium
    biased, partial, prejudiced, unreasonable.
  • middling
    unsuitable, bad.
  • normal
    insane, odd, unbalanced, irrational, disorderly, untraditional.
  • ordinary
    complicated, complex, intricate, ornate, difficult, remarkable, unclear, embellished, decorated.
  • overused
    invigorated, refreshed, unused, Energized.
  • prevalent
    inferior, subservient, isolated.
  • regular
    changing, inconsistent, unsteady, imbalanced, anomalous, variable.
  • so-so
    distinguished.
  • stock
    secondary, extra.
  • tolerable
    insufficient, inadequate, unbearable, unacceptable, poor, intolerable, unrespectable, unfit.
  • trite
    impressive, pertinent, relevant, important, desirable.
  • undistinguished
    creative.
  • unexciting
    imaginative.
  • usual
    occasional, inconstant.
  • vulgar
    artistic, nice, decent, aesthetic, fashionable, polite, inoffensive.