na-adjective, noun
unpopular; lacking popularity
Describes people, things, policies, or ideas that are not well-liked or lack public support. Used both as a noun and as a な-adjective.
あの政治家は国民の間で不人気だ。
That politician is unpopular among the public.
新メニューは不人気
The new menu item was unpopular and disappeared quickly.