timeserver vs self-seeker

timeserver and self-seeker both are nouns.

Word	Noun	Adjective	Verb	Adverb
timeserver	Yes	No	No	No
self-seeker	Yes	No	No	No

As nouns, self-seeker is a hypernym of timeserver; that is, self-seeker is a word with a broader meaning than timeserver:

timeserver: one who conforms to current ways and opinions for personal advantage
self-seeker: a person who places expediency above principle

Other hypernyms of timeserver include opportunist.

timeserver (noun)	self-seeker (noun)
one who conforms to current ways and opinions for personal advantage	a person who places expediency above principle