Noah Webster's Dictionary 1. (a.) Not friendly; not kind or benevolent; hostile; as, an unfriendly neighbor. 2. (a.) Not favorable; not adapted to promote or support any object; as, weather unfriendly to health.

Multi-Version Concordance Unfriendly (1 Occurrence) Proverbs 18:1 An unfriendly man pursues selfishness, and defies all sound judgment. (WEB NIV)