colourful vs iridescent

colourful and iridescent both are adjectives.

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

colourful (adjective)	iridescent (adjective)
having much or varied color	having a play of lustrous rainbow colors
striking in variety and interest	varying in color when seen in different lights or from different angles
having color or a certain color; sometimes used in combination