apprehensive Antonyms

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