undulate
verb (used without object)
to move with a sinuous or wavelike motion; display a smooth rising-and-falling or side-to-side alternation of movement.
was undulating
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past progressiveof undulate.past progressive
Used to describe an ongoing action or continuous state that was happening at a specific time in the past.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
By the time Futhu returned, Dunse Para was undulating with fear.
From New York Times ● Aug. 8, 2019
Every inch of wall space was undulating, whooping, stomping.
From New York Times ● May 20, 2011
"The whole street was undulating," recalled police sergeant Jesse Cook.
From Time Magazine Archive
It was undulating land between the great rivers Mississippi and Missouri.
From Time Magazine Archive
I located his face, which for some odd reason was undulating, and croaked, “Sure I can, Harry.”
From "The Evolution of Calpurnia Tate" by Jacqueline Kelly
