'underdone' definitions:

Definition of 'underdone'

From: WordNet
adjective
Insufficiently cooked [syn: half-baked, underdone]

Definition of 'underdone'

From: GCIDE
  • Rare \Rare\, a. [Compar. Rarer (r[^a]r"[~e]r); superl. Rarest.] [Cf. AS. hr[=e]r, or E. rare early. [root]18.] Nearly raw; partially cooked; not thoroughly cooked; underdone; as, rare beef or mutton. [1913 Webster]
  • New-laid eggs, which Baucis' busy care Turned by a gentle fire, and roasted rare. --Dryden. [1913 Webster]
  • Note: This word is in common use in the United States, but in England its synonym underdone is preferred. [1913 Webster]