nonplussed Antonyms

all of a shake unnerved on tenterhooks on pins and needles like a cat on a hot tin roof keyed up in a state in a flap in a dither hot under the collar strung up in a state of agitation in a tizz all of a doodah at wit's end in a cold sweat scared to scared of in a twit having kittens all of a lather all of a dither hot and bothered discombobulated beside oneself clarified calmed breathless bothered apprehensive anxious alarmed agog agitated comforted composed concerned antsy jittery stirred up worked up windy overwrought excited disquieted disconcerted afraid