defect vs disadvantage

defect and disadvantage both are nouns.

Word	Noun	Adjective	Verb	Adverb
defect	Yes	No	Yes	No
disadvantage	Yes	No	Yes	No

As nouns, disadvantage is a hypernym of defect; that is, disadvantage is a word with a broader meaning than defect:

defect (noun)	disadvantage (noun)
a mark or flaw that spoils the appearance of something (especially on a person's body)	the quality of having an inferior or less favorable position
a failing or deficiency
an imperfection in an object or machine
an imperfection in a bodily system

defect (verb)	disadvantage (verb)
desert (a cause, a country or an army), often in order to join the opposing cause, country, or army	put at a disadvantage; hinder, harm