Meaning

adjective not easy to understand or use

adjective not disposed to friendship or friendliness

adjective not friendly

originFrom Middle English unfrendly, unfrendli, unfrendely, from Old English *unfrēondlīċ (suggested by derivative unfrēondlīċe (“in an unfriendly manner; unfriendly”, adverb)), equivalent to un- + friendly. Cognate with Saterland Frisian uunfrüntelk, uunfjuntelk (“unfriendly”), West Frisian ûnfreonlik (“unfriendly”), Dutch onvriendelijk (“unfriendly”), German Low German unfrünnelk (“unfriendly”),…

Etymology from Wiktionary, CC BY-SA 3.0