What does blackish mean?
Blackish is an English adjective meaning somewhat black in colour — dark enough to be described in terms of black, yet not fully or purely black. It belongs to a productive family of approximate colour words formed with the suffix -ish (such as reddish, greenish, and bluish), which allow speakers to hedge when a colour falls between categories. In practice, blackish is used for objects and phenomena with a very dark, near-black appearance: storm clouds, deep water, soot-stained walls, shadowy plumage, or discoloured skin and fabric. It also serves as the first element of precise compound colour terms like blackish-grey and blackish-brown, which are common in natural history, geology, and everyday description alike. The word carries no strong connotation of its own; it is neutral in register, equally at home in casual conversation and technical prose. Its usefulness lies in its honesty — it admits uncertainty about colour rather than overstating it, making it a quietly valuable tool for accurate observation and vivid description.
adjectiveSomewhat black in colour; having a dark, near-black appearance without being fully black.
- Somewhat black in colour; tending towards black without being entirely so.
"The storm clouds turned a blackish grey as the thunderstorm rolled in."
"The water in the peat bog had a blackish tint that swallowed the light."
"She noticed a blackish stain spreading across the ceiling beneath the old bathroom."
Add just two letters to "black" and you gain the precision to describe everything that is almost — but not quite — black, from charcoal skies to deep-sea fish.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of blackish
Blackish is formed from the Old English-derived adjective "black" combined with the adjectival suffix "-ish," which comes from Old English -isc and indicates approximation or resemblance. The word "black" itself traces back to Old English blæc, from Proto-Germanic *blakkaz, cognate with similar words in other Germanic languages. The -ish suffix has long been used in English to build approximative colour adjectives, so blackish fits a pattern established in the earliest stages of the language; it has been in use since at least the early modern period.
How blackish is actually used
Blackish is a neutral descriptive adjective, common in both everyday speech and technical writing (e.g. describing animals, minerals, or stains). It frequently appears as the first element of compound colour terms such as blackish-grey or blackish-brown, which are often preferred over vague terms like dark or dusky when precision matters.
Easily confused with blackish
"Black" means fully or purely the darkest colour, while "blackish" means only somewhat or approximately black.