sidelong vs indirect

sidelong and indirect both are adjectives.

Word	Noun	Adjective	Verb	Adverb
sidelong	No	Yes	No	Yes
indirect	No	Yes	No	No

sidelong (adjective)	indirect (adjective)
inclining or directed to one side	not direct in spatial dimension; not leading by a straight line or course to a destination
(used especially of glances) directed to one side with or as if with doubt or suspicion or envy	extended senses; not direct in manner or language or behavior or action
situated at or extending to the side	descended from a common ancestor but through different lines
	having intervening factors or persons or influences
	not as a direct effect or consequence

sidelong (adverb)	indirect (adverb)
to, toward or at one side
with the side toward someone or something
on the side