Simple past tense and past participle of undulate.(verb)
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Use "undulated" in a sentence
"The inspiration of these promising fragments was a large, weary-looking person, with no lack of powdered shoulder above her pink bodice and a profusion of "undulated" hair of so decided a blond that it might have been suspected that the decision had lain with the lady herself."
"A wet bar was set up on the beach, and streamers tied to tree branches undulated in the breeze."
"The new work. at Kavi Gupta, builds on those, mounts them on canvas and serves as a substrate for more, smaller skins that grow to become a rich, undulated painting."