nervous Antonyms

steady valiant valorous venturesome venturous undisturbed daredevil unafraid unagitated unfearing laid-back unshakable unruffled unmoved stormless therewith together tranquil trojan unappalled unbashful unconcerned undaunted unflinching easygoing levelheaded unflappable self-controlled unapprehensive unbothered unexcited unflustered unfrightened unintimidated unperturbed worry-free untroubled unfazed unexcitable lionhearted low-key carefree happy-go-lucky unworried coolheaded imperturbable attention seeker sassy even-tempered as cool as a cucumber