innuendo vs insinuation

innuendo and insinuation both are nouns.

Word	Noun	Adjective	Verb	Adverb
innuendo	Yes	No	No	No
insinuation	Yes	No	No	No

As nouns, innuendo and insinuation are synonyms defined as:

innuendo and insinuation: an indirect (and usually malicious) implication

innuendo (noun)	insinuation (noun)
an indirect (and usually malicious) implication	the act of gaining acceptance or affection for yourself by persuasive and subtle blandishments
	an indirect (and usually malicious) implication