Undulating
/ˈʌndʒəˌleɪtɪŋ/
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Definition
(adj) Moving up and down like waves; wavy.
Sentence Examples
The ocean swells like an undulating mirror of the bowl of heaven.
Now the slaves began to dance graceful undulating dances to enchanting music.
CEFR Practice Quiz
The path followed the ____ hills of the countryside, providing many beautiful views of the entire valley today.