unagitated Synonyms

calm serene tranquil unperturbed imperturbable unworried carefree level-headed laid-back as cool as a cucumber undisturbed unruffled unmoved unconcerned cool as a cucumber even-tempered unflustered unexcited unemotional unbothered self-controlled unflappable untroubled footsure unfazed unstirred unexcitable together impassive halcyon equanimous equable dispassionate cool-headed cool controlled composed collected pacific peaceful phlegmatic stolid still steady smooth self-possessed sedate relaxed quiet poised