adj. 25B6; adjective FRIENDLY, affable, amicable, cordial; warm, warm-hearted, good-natured, nice, pleasant, agreeable, likeable, genial, good-humoured, charming, easy to get on/along with, companionable, sociable, personable; informal chummy; Brit. informal matey; N. Amer. informal regular.
unfriendly, disagreeable.