iridescent vs colourful

iridescent and colourful both are adjectives.

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

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