retroflex vs pronounce

retroflex is an adjective but pronounce is not an adjective.

Word	Noun	Adjective	Verb	Adverb
retroflex	No	Yes	Yes	No
pronounce	No	No	Yes	No

As verbs, pronounce is a hypernym of retroflex; that is, pronounce is a word with a broader meaning than retroflex:

retroflex: articulate (a consonant) with the tongue curled back against the palate
pronounce: speak, pronounce, or utter in a certain way

Other hypernyms of retroflex include articulate, enounce, enunciate, say, sound out.

retroflex (adjective)	pronounce (adjective)
bent or curved backward
pronounced with the tip of the tongue turned back toward the hard palate

retroflex (verb)	pronounce (verb)
articulate (a consonant) with the tongue curled back against the palate	pronounce judgment on
bend or turn backward	speak, pronounce, or utter in a certain way