- having a brooding ill temper; sulky.
- dismal; somber.
- sluggish; slow.
Etymology: Middle English solein, from Anglo-Norman solein ("alone"), from sol ("single"), from Latin solus, sÅlus ("by oneself alone"). The change in meaning from "single" to morose occurred in Middle English.
- Dutch: traag
- French: lent
;to be checked
Supplemental Details:Sponsor an extended definition for sullen for as little as $10 per month. Click here to contact us.