As verbs the difference between undulating and waving
is that undulating is while waving is .
As an adjective undulating
is moving up and down like waves; wavy.
As a noun waving is
repeated moving of arms or hands to signal.
undulating
English
Adjective
(
en adjective)
Moving up and down like waves; wavy
Forming a series of regular curves
Verb
(head)
waving
English
Verb
(head)
Noun
(
en noun)
Repeated moving of arms or hands to signal.