| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | calm, collected |
| Synonyms: | at ease, calmed, clearheaded, commonsensical, confident, cool, cool as cucumber, disimpassioned, dispassionate, easy, easygoing, have one's act together, imperturbable, keeping a stiff upper lip, keeping one's shirt on, levelheaded, nonchalant, not turn a hair, placid, poised, possessed, quieted, relaxed, repressed, sedate, self-assured, self-possessed, sensible, serene, serious, soothed, staid, suppressed, sure of oneself, temperate, together, tranquil, unflappable, unruffled, untroubled |
| Antonyms: | agitated, angered, annoyed, aroused, distressed, excited, perturbed, upset, worried |
| Main Entry: | nonchalant |
| Part of Speech: | adjective |
| Definition: | easygoing, laid back |
| Synonyms: | airy, aloof, apathetic, blasé, calm, careless, casual, cold, collected, composed, cool, detached, disimpassioned, disinterested, dispassionate, easy, effortless, happy, impassive, imperturbable, incurious, indifferent, insouciant, lackadaisical, light, listless, loose, lukewarm, mellow, neglectful, negligent, neutral, offhand, placid, serene, smooth, trifling, uncaring, unconcerned, unemotional, unexcited, unfeeling, unflappable, unimpressible, unperturbed, unruffled, untroubled |
| Antonyms: | intense, jumpy, nervous, unnerved |
| Main Entry: | unflappable |
| Part of Speech: | adjective |
| Definition: | cool and calm |
| Synonyms: | collected, composed, deliberate, disimpassioned, easy, impassive, imperturbable, level-headed, nonchalant, relaxed, self-possessed, unruffled |
| Antonyms: | disconcerted, nervous, upset, worried |