Dictionary.com

undulate

[ verb uhn-juh-leyt, uhn-dyuh-, -duh-; adjective uhn-juh-lit, -leyt, uhn-dyuh-, -duh- ]
/ verb ˈʌn dʒəˌleɪt, ˈʌn dyə-, -də-; adjective ˈʌn dʒə lɪt, -ˌleɪt, ˈʌn dyə-, -də- /
Save This Word!
See synonyms for: undulate / undulating on Thesaurus.com

verb (used without object), un·du·lat·ed, un·du·lat·ing.
to move with a sinuous or wavelike motion; display a smooth rising-and-falling or side-to-side alternation of movement: The flag undulates in the breeze.
to have a wavy form or surface; bend with successive curves in alternate directions.
(of a sound) to rise and fall in pitch: the wail of a siren undulating in the distance.
verb (used with object), un·du·lat·ed, un·du·lat·ing.
to cause to move in waves.
to give a wavy form to.
adjective
Also un·du·lat·ed. having a wavelike or rippled form, surface, edge, etc.; wavy.
QUIZ
FIRE UP YOUR VOCAB FOR A "RED" SYNONYMS QUIZ
No fire engine reds here, only a fierce collection of vibrant words for the color red to test yourself on.
Question 1 of 7
What does "amaranth" mean?
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of undulate

1650–60; <Latin undulātus waved, equivalent to und(a) wave + -ul(a) -ule + -ātus-ate1

OTHER WORDS FROM undulate

un·du·la·tor, nounnon·un·du·late, adjectivenon·un·du·lat·ing, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use undulate in a sentence

British Dictionary definitions for undulate

undulate
/ (ˈʌndjʊˌleɪt) /

verb
to move or cause to move in waves or as if in waves
to have or provide with a wavy form or appearance
adjective (ˈʌndjʊlɪt, -ˌleɪt) undulated
having a wavy or rippled appearance, margin, or forman undulate leaf

Derived forms of undulate

undulator, noun

Word Origin for undulate

C17: from Latin undulātus, from unda a wave
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
FEEDBACK