laid-back Synonyms

mellow unperturbed unruffled unmoved unconcerned tranquil together stolid stoical stoic sleepyhead serene self-possessed sedate relaxed quiet unceremonious undisturbed unagitated unflustered unemotional undemanding self-controlled unflappable untroubled unfazed unexcitable even-tempered imperturbable happy-go-lucky carefree easygoing at rest unalarming poised placid phlegmatic equable easy-going easy easeful dispassionate cool-headed cool controlled confident composed collected chilled casual