| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | calm, collected |
| Synonyms: | assured, composed, coolheaded, deliberate, detached, dispassionate, impassive, imperturbable, levelheaded, nonchalant, philosophical, phlegmatic, placid, quiet, relaxed, self-controlled, self-possessed, serene, stolid, together, tranquil, unagitated, unemotional, unexcited, unflappable, unruffled |
| Antonyms: | agitated, annoyed, excited, upset |
| Main Entry: | untroubled |
| Part of Speech: | adjective |
| Definition: | calm, peaceful |
| Synonyms: | composed, cool, halcyon, hushed, placid, quiet, serene, steady, still, tranquil, unagitated, unconcerned, undisturbed, unflappable, unflustered, unperturbed, unruffled, unstirred, unworried |
| Antonyms: | anxious, disturbed, troubled, unnerved |
| Main Entry: | unperturbed |
| Part of Speech: | adjective |
| Definition: | unruffled |
| Synonyms: | calm, collected, composed, placid, serene, tranquil, unagitated, undisturbed, unflurried, unflustered, unstirred, unvexed, unworried |
| Antonyms: | anxious, perturbed, upset, worried |