Synonyms of untroubled

1 Syllable

smooth, mild, cool, still, quiet, hushed

2 Syllables

certain, halcyon, restful, tranquil, stilling, smoothed, smoothing, smoother, placid, stillest, smoothest, stiller, stilled, milder, steady, deeping, mildest

3 Syllables

unanxious, questionless, unstirred, unworried, nonchalant, cool-headed, serene, peaceful, unruffled, neutralist, pacific, unbroken, free-minded, insouciant, composed, easeful, frictionless, demulcent

4 Syllables

moderate, unbothered, undisturbed, lenitive, unperturbed, unflustered, peace-loving, unexcited, unflappable, peaceloving, peacemaking, placatory, mirrorlike, unconcerned, comfortable, loose-fitting

5 Syllables

unagitated, unimpressible, disimpassioned, happy-go-lucky