colourless vs colourful

colourless and colourful both are adjectives.

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

colourless (adjective)	colourful (adjective)
weak in color; not colorful	having much or varied color
lacking in variety and interest	striking in variety and interest
	having color or a certain color; sometimes used in combination