undulate

As adjectives the difference between sinuous and undulate

is that sinuous is having curves in alternate directions; meandering while undulate is wavy in appearance or form.

As a verb undulate is

to cause to move in a wavelike motion.

As adjectives the difference between changeable and undulate

is that changeable is capable of being changed while undulate is wavy in appearance or form.

As a verb undulate is

to cause to move in a wavelike motion.

In lang=en terms the difference between vacillate and undulate

is that vacillate is to swing indecisively from one course of action or opinion to another while undulate is to appear wavelike.

As verbs the difference between vacillate and undulate

is that vacillate is to sway unsteadily from one side to the other; oscillate while undulate is to cause to move in a wavelike motion.

As an adjective undulate is

wavy in appearance or form.

In transitive terms the difference between undull and undulate

is that undull is to remove the dullness of; clear while undulate is to cause to resemble a wave.

In lang=en terms the difference between undulate and heave

is that undulate is to appear wavelike while heave is to make an effort to raise, throw, or move anything; to strain to do something difficult.

As verbs the difference between undulate and heave

is that undulate is to cause to move in a wavelike motion while heave is (archaic) to lift (generally); to raise, or cause to move upwards (particularly in ships or vehicles) or forwards.

As an adjective undulate

is wavy in appearance or form.

As a noun heave is

an effort to raise something, as a weight, or one's self, or to move something heavy.

In lang=en terms the difference between undulate and swell

is that undulate is to appear wavelike while swell is to be raised to arrogance.

As verbs the difference between undulate and swell

is that undulate is to cause to move in a wavelike motion while swell is to become bigger, especially due to being engorged.

As adjectives the difference between undulate and swell

is that undulate is wavy in appearance or form while swell is excellent.

As a noun swell is

the act of swelling.

As verbs the difference between undulate and surge

is that undulate is to cause to move in a wavelike motion while surge is (lb) to rush, flood, or increase suddenly.

As an adjective undulate

is wavy in appearance or form.

As a noun surge is

a sudden transient rush, flood or increase.

As adjectives the difference between crimp and undulate

is that crimp is (obsolete) easily crumbled; friable; brittle while undulate is wavy in appearance or form.

As verbs the difference between crimp and undulate

is that crimp is to fasten by bending metal so that it squeezes around the parts to be fastened or crimp can be to impress (seamen or soldiers); to entrap, to decoy while undulate is to cause to move in a wavelike motion.

As a noun crimp

is a fastener or a fastening method that secures parts by bending metal around a joint and squeezing it together, often with a tool that adds indentations to capture the parts or crimp can be an agent making it his business to procure seamen, soldiers, etc, especially by seducing, decoying, entrapping, or impressing them [since the passing of the merchant shipping act of 1854, applied to one who infringes sub-section 1 of this act, ie to a person other than the owner, master, etc, who engages seamen without a license from the board of trade].

As a verb undulate

is to cause to move in a wavelike motion.

As an adjective undulate

is wavy in appearance or form.

As a noun late is

(kind of) hatchet, axe, chopper.