adj. -- Of or for the general public; popular or popularized; Of, relating to, or specializing in popular music; Of or suggestive of pop art. n. -- Popular music; Pop art; Popular culture.
un-pop-u-lar:
adj. -- Lacking general approval or acceptance; Regarded with disfavor or lacking general approval.
un-pop:
adj. -- The application of pop aesthetics, stylings, or techniques to unpopular, unpleasant, repressed or otherwise censored ideas. n. -- Unpop art; Unpop music; Unpop writing; Unpop films.