calm and unworried; relaxed and rather casual

an easygoing person.

going easily, as a horse.

adjective

agitated , critical , demanding , hurried , hyped , intolerant , nervous , strict , upset , worried

adjective

amenable , breezy , calm , carefree , casual , collected , complaisant , composed , devil-may-care * , even-tempered * , flexible , free and easy , hang-loose , happy-go-lucky * , indolent , indulgent , informal , insouciant , laid-back * , lazy , lenient , liberal , low-pressure , mild , moderate , nonchalant , offhand , outgiving , patient , placid , poised , relaxed , self-possessed , serene , tolerant , tranquil , unconcerned , uncritical , undemanding , unhurried , uninhibited , easy , natural , spontaneous , unceremonious , unrestrained , careless , happy-go-lucky , unaffected