What does duller mean?
Duller is the comparative form of the adjective dull, used to describe something that possesses less of whatever quality dull conveys: brightness, interest, sharpness, or intensity. A duller color has less vibrancy, a duller blade less cutting edge, and a duller evening less excitement. The word appears constantly in everyday comparison, from art criticism ('this palette is duller than her earlier work') to mundane observation ('the weather turned duller as the day went on'). It can also serve as a verb form of to dull, meaning to make or become less acute or lively, as when constant noise dulls the hearing or routine dulls ambition. Derived from Old English dol, meaning foolish, dull has carried its sense of slowness or lifelessness for over a thousand years. Duller is neutral in register and works equally well in formal writing and casual speech, making it one of those quiet workhorse words that does its job without drawing attention to itself.
Comparative of dull: less bright, interesting, sharp, or vivid.
"The sequel was duller than the original film."
Present tense form of 'to dull': makes or becomes less sharp, intense, or lively.
"Years of repetition duller the sharpest memories, critics argue."
Every time you say something is 'duller', you're echoing an Old English word that originally meant foolish — so calling a lecture dull once implied it could make a fool of you.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of duller
Duller derives from the adjective dull, which comes from Old English dol, meaning 'foolish' or 'slow-witted'. Over the Middle English period the word broadened from mental sluggishness to physical senses such as bluntness and lack of luster. Its comparative formation follows the regular Germanic pattern of adding -er. Related words sharing this ancient root include dolt and dullard, both nouns for a slow-witted person.
Related word forms
How duller is actually used
Duller is the standard comparative of 'dull' in both British and American English; 'more dull' also occurs but is less idiomatic. As a verb form ('he dulls', 'they duller' is rare), the word functions chiefly as the third-person plural present tense of 'to dull', though this usage is far less common than the adjectival comparative.
Easily confused with duller
A dullard is a noun meaning a stupid or slow-witted person, whereas duller is a comparative adjective describing something lacking brightness, interest, or sharpness.