misbegotten vs spurious

misbegotten and spurious both are adjectives.

Word	Noun	Adjective	Verb	Adverb
misbegotten	No	Yes	No	No
spurious	No	Yes	No	No

As adjectives, misbegotten and spurious are synonyms defined as:

Other synonyms of misbegotten include bastardly, misbegot.

misbegotten (adjective)	spurious (adjective)
born out of wedlock	false or fake; not what it appears to be
	plausible but false
	born out of wedlock
	ostensibly valid, but not actually valid