pretense vs affectation

pretense and affectation both are nouns.

Word	Noun	Adjective	Verb	Adverb
pretense	Yes	No	No	No
affectation	Yes	No	No	No

As nouns, affectation is a hyponym of pretense; that is, affectation is a word with a more specific, narrower meaning than pretense:

Other hyponyms of pretense include appearance, show, make-believe, pretend, affectedness, mannerism, pose, charade, masquerade.

pretense (noun)	affectation (noun)
the act of giving a false appearance	a deliberate pretense or exaggerated display
a false or unsupportable quality
an artful or simulated semblance
imaginative intellectual play
pretending with intention to deceive