Antonyms of adj better-known

1 sense of better-known

Sense 1
better-known -- (more familiar or renowned than the other of two; "the better-known book of the two")

INDIRECT (VIA known) -> unknown -- (not known; "an unknown amount"; "an unknown island"; "an unknown writer"; "an unknown source")

Similarity of adj better-known

1 sense of better-known

Sense 1
better-known -- (more familiar or renowned than the other of two; "the better-known book of the two")
       => known (vs. unknown) -- (apprehended with certainty; "a known quantity"; "the limits of the known world"; "a musician known throughout the world"; "a known criminal")

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