happy-go-lucky Antonyms

like a cat on hot bricks ill at ease stressed wretched worried unhappy troubled tense sorrowful sad nervous jittery jumpy uptight all of a lather all of a dither woebegone out of sorts on tenterhooks on pins and needles like a cat on a hot tin roof beside oneself overburdened antsy mournful miserable melancholy desolate depressed dejected concerned careworn bothered blue apprehensive anxious agitated despairing despondent disconsolate low-spirited high-strung glum gloomy forlorn downcast down doleful distressed dismal