Meaning of TAKEN FOR GRANTED(P)

WordNet Dictionary
	Definition:		[adj]  accepted as real or true without proof; "an assumed increase in population"; "the assumed reason for his absence"; "assumptive beliefs"; "his loyalty was taken for granted" [adj]  evident without proof or argument; "an axiomatic truth"; "we hold these truths to be self-evident"
	Synonyms:		acknowledged, assumed, assumptive, axiomatic, obvious, self-evident