achromatic
a-chro-mat-ic
adjective
Without colour; appearing in shades of black, white, or grey.
"The film was shot in achromatic black and white."
adjective
Relating to or producing images free from chromatic aberration (colour distortion).
"Achromatic lenses correct colour fringing effectively."
Thesaurus
Synonyms: bluish-gray, milk-white, slate-grey, iron-grey, slate-gray, ash-grey, pearly-white, charcoal, brown-black, silver-gray, purple-white, purplish-white
Antonyms: chromatic