Synonyms for Happy-go-lucky:

• adj.

  •blithely unconcerned (adjective)
  • feckless,
  • without care,
  • living the life of riley,
  • easy,
  • reckless,
  • unconcerned,
  • content,
  • carefree and untroubled,
  • irresponsible,
  • blithe,
  • untroubled,
  • casual,
  • heedless,
  • insouciant,
  • cheerful,
  • lackadaisical.
  •carefree (adjective)
  • fancy-free.

• n.

  •
  • at ease,
  • nonchalant,
  • cool,
  • calm,
  • composed.

• Other synonyms:

  •carefree
  • careless.
  •Other relevant words:
  • lightsome,
  • worry-free,
  • Pococurante,
  • contented,
  • unflappable,
  • prodigal,
  • serene,
  • silly,
  • merry,
  • sunny,
  • mellow,
  • grasshopper,
  • airy,
  • unguarded,
  • peaceful,
  • jolly,
  • shiftless,
  • collected,
  • languid,
  • unconstrained,
  • offhand,
  • distant,
  • rakish,
  • thoughtless,
  • extravagant,
  • unexcitable,
  • trouble-free,
  • spendthrift,
  • tranquil,
  • light,
  • languorous,
  • natural,
  • together,
  • joyful,
  • unenthusiastic,
  • Light-hearted,
  • unruffled,
  • wasteful,
  • jovial,
  • uncaring,
  • unemotional,
  • gay,
  • thriftless,
  • pacific,
  • indifferent,
  • negligent,
  • detached,
  • aloof,
  • uninterested,
  • undisturbed,
  • breezy,
  • dispassionate,
  • profligate,
  • imperturbable,
  • imprudent,
  • short-sighted,
  • profuse,
  • unperturbed,
  • unchallenging,
  • lavish,
  • apathetic,
  • laid-back,
  • unexcited,
  • uneconomic.

Paraphrases for Happy-go-lucky:

• Forward Entailment

  • Adjective
    happy.

• Other Related

  • Adjective
    upbeat, cheerful.

Antonyms for Happy-go-lucky:

• adj.

  • blithely unconcerned
    dissatisfied, troubled, upset, worried, discontented, distressed, disconsolate.
  • Other antonyms:
    high-strung, nervous, earnest, bothered, wary, jittery, careful, decorous, cautious, tense, responsible, skittish, heedful, sorrowful, concerned, jumpy, formal, ceremonious, strict, grave, somber, uptight, overburdened, long-suffering, rigid.