coolheaded Antonyms

like a cat on hot bricks hot and bothered het up discombobulated beside oneself hotheaded fazed last-ditch antsy jumpy jittery ill at ease worried 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 wild-eyed 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 distracted disquieted disconcerted discomposed concerned careworn bothered apprehensive anxious angry alarmed agitated distressed disturbed inflamed hairless frightened fretful fretting frantic flustered