apprehensive Antonyms

self-assured unruffled unshakable valiant unshaken undisturbed tranquillise unafraid unagitated at home bow-wow unmoved undaunted unconscious self-contained self-possessed serene steady stolid together tranquil unbashful unclasp unconcerned laid-back greathearted unflappable self-controlled unbothered unemotional unflustered unheeding unperturbed unsuspicious well-adjusted worry-free untroubled unfazed unexcitable carefree devil-may-care happy-go-lucky coolheaded unsurprised imperturbable at ease attention seeker sassy even-tempered as cool as a cucumber