unperturbed Synonyms

unruffled unflustered unflurried unworried carefree laid-back unagitated undisturbed as cool as a cucumber unmoved unconcerned tranquil imperturbable at ease even-tempered unstirred unexcited unemotional unbothered self-controlled unflappable untroubled unfazed unexcitable together stolid equable easy dispassionate cool-headed cool controlled confident composed comfortable collected impassive nonchalant nonplussed steady serene self-possessed sedate relaxed quiet poised placid phlegmatic peaceful calm