Synonyms of waveless

1 Syllable
slow, smooth, mild, cool, calm, calms, still, hushed, bland
2 Syllables
calmer, halcyon, restful, breathless, tranquil, soothing, windless, stormless, calmest, placid, rural, low-key, quiescent
3 Syllables
serene, unruffled, reposing, breezeless, pacific, harmonious, pastoral, bucolic, motionless
4 Syllables
undisturbed, reposeful, inactive