dullen

verb — 2 senses

dullen

verb

/ˈdʌlən/

Etymology From dull + -en.

1

Nonstandard To make dull or duller; to dull.

2

Nonstandard To become dull or duller; to dull.

Synonyms
dull

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.