perturb vs throw out of kilter

perturb and throw out of kilter both are verbs.

Word	Noun	Adjective	Verb	Adverb
perturb	No	No	Yes	No
throw out of kilter	No	No	Yes	No

As verbs, perturb and throw out of kilter are synonyms defined as:

Other synonyms of perturb include derange.

perturb (verb)	throw out of kilter (verb)
throw into great confusion or disorder	throw into great confusion or disorder
disturb in mind or make uneasy or cause to be worried or alarmed
cause a celestial body to deviate from a theoretically regular orbital motion, especially as a result of interposed or extraordinary gravitational pull
disturb or interfere with the usual path of an electron or atom