easy-going
amenable, calm, carefree, casual, complacent, easy, easy-oasy (slang) even-tempered, flexible, happy-go-lucky, indulgent, insouciant, laid-back (informal) lenient, liberal, mild, moderate, nonchalant, permissive, placid, relaxed, serene, tolerant, unconcerned, uncritical, undemanding, unhurried
Antonyms
anxious, edgy, fussy, hung-up (slang) intolerant, irritated, nervy (Brit. informal) neurotic, on edge, strict, tense, uptight (informal)