adjective
- mentally slow; stupid
- lacking sensitivity; blunted in feeling or perception: dull to grief
- physically slow; slow-moving; sluggish
- lacking spirit, zest, etc.; not lively; listless, insipid, etc.
- not active or busy; slack: a dull period for sales
- causing boredom; tedious: a dull party
- not pointed or sharp; blunt; not keen: a dull blade
- not felt keenly; not acute: a dull headache
- not vivid; not brilliant; dim: a dull color
- not shiny or glossy; lusterless: a dull finish
- not distinct, resonant, etc.; muffled: a dull thud
- gloomy; cloudy: dull weather
Origin:
ME dul < OE dol, stupid, akin to Ger toll < IE *dh(e)wel- < base *dheu-, blow, be turbid > dumb, dwell, OIr dall, blind, Gr thanatos, death
transitive verb, intransitive verb
to make or become dull