English

Adjective

duncely ‎(comparative more duncely, superlative most duncely)

1. Like, characteristic of, or pertaining to a dunce or dunces; duncelike.
   • 2002, Paul Baines, Alexander Pope - Page 141:

     More widely, Pope caricatures in these chaotic manoeuvres aspects of duncely writing which contravene the rules of nature: [...]

Etymology 2

From dunce +‎ -ly ‎(adverbial suffix).

Adverb

duncely ‎(comparative more duncely, superlative most duncely)

1. In the manner of a dunce; as a dunce; in the way of scholastic philosophy.