Open English Wordnet
Adjectives
(s)carefree, devil-may-care, freewheeling, happy-go-lucky, harum-scarum, slaphappycheerfully irresponsible“carefree with his money”, “freewheeling urban youths”, “had a harum-scarum youth”
(s)punch-drunk, silly, slaphappydazed from or as if from repeated blows“knocked silly by the impact”, “slaphappy with exhaustion”, “punch-drunk with love”