Antonyms of adj slaphappy

2 senses of slaphappy

Sense 1
carefree, devil-may-care, freewheeling, happy-go-lucky, harum-scarum, slaphappy -- (cheerfully irresponsible; "carefree with his money"; "freewheeling urban youths"; "had a harum-scarum youth")

INDIRECT (VIA irresponsible) -> responsible -- (worthy of or requiring responsibility or trust; or held accountable; "a responsible adult"; "responsible journalism"; "a responsible position"; "the captain is responsible for the ship's safety"; "the cabinet is responsible to the parliament")

Sense 2
punch-drunk, silly, slaphappy -- (dazed from or as if from repeated blows; "knocked silly by the impact"; "slaphappy with exhaustion")

INDIRECT (VIA confused) -> clearheaded, clear-thinking -- (not mentally confused; able to think clearly and act intelligently)

Similarity of adj slaphappy

2 senses of slaphappy

Sense 1
carefree, devil-may-care, freewheeling, happy-go-lucky, harum-scarum, slaphappy -- (cheerfully irresponsible; "carefree with his money"; "freewheeling urban youths"; "had a harum-scarum youth")
       => irresponsible (vs. responsible) -- (showing lack of care for consequences; "behaved like an irresponsible idiot"; "hasty and irresponsible action")

Sense 2
punch-drunk, silly, slaphappy -- (dazed from or as if from repeated blows; "knocked silly by the impact"; "slaphappy with exhaustion")
       => confused (vs. clearheaded) -- (mentally confused; unable to think with clarity or act intelligently; "the flood of questions left her bewildered and confused")