Crossword solverSynonyms for undulation15 crossword answers for “undulation” (10), sorted by letter count.How many letters?All154151617381921011131211514 letters 1flap5 letters 1pulse6 letters 1seiche7 letters 3flutterimpulsepulsing8 letters 1flapping9 letters 2pulsationblast wave(5,4)10 letters 1fluttering11 letters 3fluctuationoscillationgravity wave(7,4)12 letters 1acoustic wave(8,4)15 letters 1gravitation wave(11,4)