opacity vs transparency

opacity and transparency both are nouns.

Word	Noun	Adjective	Verb	Adverb
opacity	Yes	No	No	No
transparency	Yes	No	No	No

opacity (noun)	transparency (noun)
the quality of being opaque to a degree; the degree to which something reduces the passage of light	picture consisting of a positive photograph or drawing on a transparent base; viewed with a projector
incomprehensibility resulting from obscurity of meaning	the quality of being clear and transparent
the phenomenon of not permitting the passage of electromagnetic radiation	permitting the free passage of electromagnetic radiation