Entry Word: unflappable

Function: adjective

Meaning: not easily panicked or upset <the unflappable teacher never even blinked when the wall map came crashing down>

Synonyms imperturbable, nerveless, unshakable

Related Words calm, collected, composed, cool, coolheaded, nonchalant, placid, self-possessed, serene, tranquil, undisturbed, unperturbed, unruffled, unshaken, untroubled, unworried

Near Antonyms panicky; aflutter, anxious, dithery, edgy, het up, hung up, jittery, jumpy, nervous, nervy, perturbed, shaky, tense, troubled, uneasy, upset, uptight, worried

Antonyms perturbable, shakable