'Unfavorable' definitions:

Definition of 'unfavorable'

(from WordNet)
adjective
Not encouraging or approving or pleasing; "unfavorable conditions"; "an unfavorable comparison"; "unfavorable comments", "unfavorable impression" [syn: unfavorable, unfavourable] [ant: favorable, favourable]
adjective
(of winds or weather) tending to hinder or oppose; "unfavorable winds" [syn: unfavorable, unfavourable] [ant: favorable, favourable]
adjective
Not favorable; "made an unfavorable impression"; "unfavorable reviews" [syn: unfavorable, unfavourable]

Definition of 'Unfavorable'

From: GCIDE
  • Unfavorable \Un*fa"vor*a*ble\, a. Not favorable; not propitious; adverse; contrary; discouraging. -- {Un*fa"vor*a*ble*ness}, n. -- {Un*fa"vor*a*bly}, adv. [1913 Webster]

Synonyms of 'unfavorable'

From: Moby Thesaurus