Definition for Insouciant:

• Careless, indifferent. So insouciance n. [ French]

Synonyms for Insouciant:

• adj.

  •carefree (adjective)
  • at ease,
  • easy,
  • easy going,
  • cheerful,
  • blithe,
  • cool,
  • happy,
  • calm,
  • sunny.
  •casual (adjective)
  • cursory,
  • detached,
  • withdrawn,
  • offhand,
  • mellow,
  • perfunctory,
  • uninterested,
  • indifferent,
  • remote,
  • incurious,
  • apathetic,
  • informal,
  • aloof.
  •easygoing (adjective)
  • indolent,
  • tranquil,
  • lazy,
  • collected,
  • mild,
  • serene,
  • devil-may-care,
  • composed.
  •happy-go-lucky (adjective)
  • content,
  • improvident,
  • reckless.
  •indifferent (adjective)
  • lukewarm,
  • impartial,
  • passive,
  • dispassionate,
  • neutral,
  • uncaring,
  • unwilling,
  • cold,
  • Half-hearted,
  • disinterested.
  •insouciant (adjective)
  • buoyant,
  • heedless,
  • untroubled,
  • thoughtless,
  • airy.
  •lighthearted (adjective)
  • lightsome,
  • laid-back.
  •listless (adjective)
  • heavy,
  • inattentive,
  • phlegmatic,
  • lifeless,
  • sluggish,
  • slow,
  • bored,
  • languorous,
  • inert,
  • impassive,
  • sleepy,
  • torpid,
  • lethargic,
  • slack,
  • supine,
  • enervated,
  • dull,
  • languid.
  •nonchalant (adjective)
  • effortless,
  • unfeeling,
  • unruffled,
  • smooth,
  • imperturbable,
  • unemotional,
  • unflappable,
  • negligent,
  • unperturbed.

• n.

  •
  • complacency,
  • remiss,
  • slipshod,
  • lackadaisical.
  •carefree (noun)
  • breezy,
  • careless,
  • jaunty.

• Other synonyms:

  •Other relevant words:
  • curt,
  • superficial,
  • blase,
  • peaceful,
  • satisfied,
  • bland,
  • Disregardful,
  • debonair,
  • accidental,
  • half-baked,
  • comatose,
  • unmindful,
  • stony,
  • forgetful,
  • complacent,
  • unexcitable,
  • slovenly,
  • passing,
  • resigned,
  • occasional,
  • unthinking,
  • free-and-easy,
  • frigid,
  • unimpressionable,
  • urbane,
  • Fooling,
  • stoic,
  • emotionless,
  • sans souci,
  • dirty,
  • controlled,
  • stoical,
  • chill,
  • trouble-free,
  • Light-hearted,
  • spent,
  • callous,
  • unenthusiastic,
  • distant,
  • undiscriminating,
  • worry-free,
  • taciturn,
  • hopeless,
  • self-satisfied,
  • reserved,
  • tactless,
  • chance,
  • removed,
  • regardless,
  • weary,
  • insensible,
  • oblivious,
  • unprepared,
  • spiritless,
  • dashing,
  • stolid,
  • degage,
  • erroneous,
  • everyday,
  • undesirous,
  • inconsiderate,
  • imprudent,
  • daily,
  • Apathetical,
  • uninquisitive,
  • suave,
  • undiplomatic,
  • uncurious,
  • uncompassionate,
  • contained,
  • uninvolved,
  • unsympathetic,
  • disorderly,
  • turned-off,
  • slothful,
  • insensitive,
  • unready,
  • unambitious,
  • unresponsive,
  • together,
  • gentle,
  • uninspired,
  • undisturbed,
  • unceremonious,
  • Inexcitable,
  • weak,
  • numb,
  • unimpressed,
  • soothing,
  • benumbed,
  • tenor,
  • sprightly,
  • somnolent,
  • charming,
  • slow-moving,
  • offhanded,
  • blah,
  • flippant,
  • Laodicean,
  • unattracted,
  • Unaspiring,
  • aimless,
  • unheedful,
  • cold-blooded,
  • Unsolicitous,
  • incidental,
  • inactive,
  • contented,
  • tepid,
  • slaphappy,
  • inexact,
  • cavalier,
  • untactful,
  • mindless,
  • soporific,
  • pacific,
  • stupefied,
  • comfortable,
  • smug,
  • unmoved,
  • chilly,
  • heartless,
  • slow-paced.

Antonyms for Insouciant:

• adj.

  • carefree
    heavyhearted, troubled, worried.
  • casual
    serious, formal.
  • easygoing
    hurried, hyped, intolerant, agitated, strict, upset, demanding, critical.
  • gay
    depressed, sad, unhappy, discouraged.
  • happy-go-lucky
    disconsolate, dissatisfied, distressed, discontented.
  • insouciant
    anxious, high-strung, nervous.
  • lighthearted
    heavy-hearted.
  • listless
    alert, energetic, active, lively, attentive, untired.
  • nonchalant
    intense, jumpy, unnerved.
  • unconcerned
    curious, concerned.
  • Other antonyms:
    caring, overburdened, interested, sensitive, cautious, aware, earnest, long-suffering, wary, conscientious, fervent, keen, passionate, warm, careworn, mindful, zealous, careful, heedful, somber, warmhearted, grave.