adj, noun ·2 syllables ·Rare ·Advanced level

Definitions

Noun

1. 1
   One who, or that which, dulls.

   "But, of all, your grace must fly phlebotomy, fresh pork, conger, and clarified whey: they are all dullers of the vital spirits."

Adjective

1. 1
   comparative form of dull: more dull comparative, form-of

Synonyms

All synonyms

lacklusterbluntbluntedbovinedeadeneddense

Example

More examples

"What could be duller than a semantics class with Ben Stein?"

Etymology

Etymology 1

From dull (verb) + -er.

Etymology 2

From dull (adjective) + -er.

Related phrases

tooth duller

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.