nonplussed Antonyms

all of a shake 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 hot and bothered discombobulated beside oneself antsy jittery on tenterhooks unnerved 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 in a tizz in a state of agitation strung up stirred up worked up windy comforted clarified calmed breathless bothered awe-stricken apprehensive anxious alarmed agog agitated agape composed concerned overwrought moved moon-eyed marvelling marveling jolted