chalky vs achromatic

chalky and achromatic both are adjectives.

Word	Noun	Adjective	Verb	Adverb
chalky	No	Yes	No	No
achromatic	No	Yes	No	No

chalky (adjective)	achromatic (adjective)
composed of or containing or resembling calcium carbonate or calcite or chalk	having no hue
of something having the color of chalk