Happy-go-lucky
Antonyms of HAPPY-GO-LUCKY
- cautious, dissatisfied, jittery, wary, overburdened, somber, grave, formal, discontented, distressed, upset, ceremonious, heedful, sorrowful, skittish, nervous, responsible, rigid, decorous, uptight, worried, strict, tense, long-suffering, careful, earnest, disconsolate, high-strung, jumpy, bothered, troubled, concerned.