cool-headed Synonyms

even-tempered as cool as a cucumber unworried carefree unshockable level-headed laid-back unagitated undisturbed unruffled unmoved unconcerned tranquil imperturbable at ease unperturbed unflustered unexcited unemotional unbothered self-controlled unflappable untroubled unfazed unexcitable cool as a cucumber together stolid impassive equanimous equable dispassionate detached cool controlled confident composed collected chilled nonchalant pacifical peaceful stoical steady serene self-possessed sedate relaxed quiet poised