Synonyms of the word

happy-go-lucky

• adj. carefree or untroubled.

carefree

• adj. Without cares; free of concern or worries; easy; casual; without difficulty.

devil-may-care

• adj. Carefree, reckless, irresponsible.

freewheeling

• v. present participle of freewheel.

harum-scarum

• adj. wild, careless, irresponsible.
• adv. wildly, carelessly, irresponsibly.

irresponsible

• adj. Lacking a sense of responsibility; incapable of or not chargeable with responsibility; unable to respond…
• adj. Not responsible; not subject to responsibility; not to be held accountable, or called into question.
• n. Someone who is not responsible.

slaphappy

• adj. Incoherent from being struck; punch drunk.
• adj. In a humorous mood as a result of fatigue; silly from being tired.
• adj. Irresponsibly free.