What does blueish mean?
'Blueish' is an adjective meaning somewhat blue in colour — a shade that leans toward blue without being fully or purely blue. It functions exactly like its more common sibling spelling 'bluish', which most modern writers and dictionaries treat as the standard form; 'blueish' is a fully legitimate variant, though noticeably rarer in print. In practice the word describes subtle colour effects: a sky washed with blue at dusk, water with a faint blue cast, a bruise shading into blue, or metal and glass carrying cool undertones. It pairs naturally with other colour terms in compounds such as 'blueish-grey' or 'blueish-green', allowing precise description of mixed hues. The word derives simply from 'blue' plus the adjectival suffix '-ish', meaning 'having the quality of'. Because it conveys approximation rather than exactness, 'blueish' suits everyday, observational language — the register of weather reports, art description, and casual conversation alike — where a speaker wants to signal 'close to blue' without committing to a technical colour name.
adjectiveHaving a colour close to blue; somewhat blue in tint or appearance. A variant spelling of 'bluish'.
- Somewhat blue in colour; tinged with blue.
"The evening sky took on a blueish tinge just before sunset."
"A blueish haze hung over the distant hills."
"The fabric had faded to a pale blueish grey after years in the sun."
Spelling it 'blueish' instead of 'bluish' isn't wrong — dictionaries simply list it as the rarer twin of one of English's most trusted colour words.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of blueish
'Blueish' is formed straightforwardly from the English adjective 'blue' combined with the suffix '-ish', which creates adjectives meaning 'somewhat' or 'resembling'. The root word 'blue' entered Middle English in the medieval period from Old French 'bleu', which itself descends from a Germanic source related to words for shining or pale colour. Cognates appear across the Germanic languages, such as Scots 'blae'. As a derivative formation, 'blueish' shares its entire history with 'blue' and stands alongside its more common variant 'bluish'.
Word family
Usage notes
'Bluish' is the standard and far more frequent spelling; 'blueish' is a recognised variant that appears mainly in descriptive or informal writing. The word is neutral in register and commonly used for skies, water, shadows, bruises, and metals.
Don't confuse with
'Bluish' is the standard, more common spelling of the same word, while 'blueish' is a less frequent variant carrying an identical meaning.