coolheaded Antonyms

like a cat on hot bricks het up discombobulated beside oneself hotheaded fazed last-ditch antsy jumpy jittery ill at ease worried hot and bothered hot under the collar in a dither in a state of nerves having kittens all of a lather all of a dither in a state of agitation on tenterhooks like a cat on a hot tin roof in a state in a lather in a flat spin in a flap reckless nervous inflamed disquieted disconcerted discomposed concerned careworn bothered apprehensive anxious angry alarmed agitated distracted distressed disturbed hairless frightened fretful fretting frantic flustered flurried