Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb undulate

4 senses of undulate

Sense 1
ripple, ruffle, riffle, cockle, undulate -- (stir up (water) so as to form ripples)
       => flow, flux -- (move or progress freely as if in a stream; "The crowd flowed out of the stadium")

Sense 2
roll, undulate -- (occur in soft rounded shapes; "The hills rolled past")

Sense 3
roll, undulate, flap, wave -- (move in a wavy pattern or with a rising and falling motion; "The curtains undulated"; "the waves rolled towards the beach")
       => move -- (move so as to change position, perform a nontranslational motion; "He moved his hand slightly to the right")

Sense 4
undulate -- (increase and decrease in volume or pitch, as if in waves; "The singer's voice undulated")
       => change -- (undergo a change; become different in essence; losing one's or its original nature; "She changed completely as she grew older"; "The weather changed last night")

Antonyms of adj undulate

1 sense of undulate

Sense 1
undulate -- (having a wavy margin and rippled surface)

INDIRECT (VIA smooth) -> rough -- (of the margin of a leaf shape; having the edge cut or fringed or scalloped)

Similarity of adj undulate

1 sense of undulate

Sense 1
undulate -- (having a wavy margin and rippled surface)
       => smooth (vs. rough) -- (of the margin of a leaf shape; not broken up into teeth)