unfavourable
1. [ adjective ] not encouraging or approving or pleasing
Synonyms: unfavorable
Examples:

"unfavorable conditions" "an unfavorable comparison" "unfavorable comments"

Related terms: favorable adverse admonitory discriminatory hostile disapproving bad critical negative uncomplimentary
2. [ adjective ] (of winds or weather) tending to hinder or oppose
Synonyms: unfavorable
Examples:

"unfavorable winds"

Related terms: favorable adverse unpropitious
Similar spelling:   unfavorable
  unfavourably
  unfavorableness
  unfavorably