Tanım
•A slothful or stupid person.
•Boring, uninteresting.
Etimoloji
The noun is possibly derived from dull or Middle English dold (past participle of dullen, dollen (“to make or become blunt or dull; to make or become dull-witted or stupid; to make or become inactive”), from dul, dol, dolle (“not sharp, blunt, dull; not quick-witted, stupid; lethargic, sluggish”); see further at dull), modelled after tantrum. The adjective is probably derived from the noun.