iridescent vs chatoyant

iridescent and chatoyant both are adjectives.

Word	Noun	Adjective	Verb	Adverb
iridescent	No	Yes	No	No
chatoyant	No	Yes	No	No

As adjectives, iridescent and chatoyant are synonyms defined as:

iridescent and chatoyant: varying in color when seen in different lights or from different angles

Other synonyms of iridescent include changeable, shot.

iridescent (adjective)	chatoyant (adjective)
having a play of lustrous rainbow colors	varying in color when seen in different lights or from different angles
varying in color when seen in different lights or from different angles