Antonyms of adj best-known

1 sense of best-known

Sense 1
best-known -- (most familiar or renowned; "Stevenson's best-known work is probably `Treasure Island'")

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

Similarity of adj best-known

1 sense of best-known

Sense 1
best-known -- (most familiar or renowned; "Stevenson's best-known work is probably `Treasure Island'")
       => known (vs. unknown) -- (apprehended with certainty; "a known quantity"; "the limits of the known world"; "a musician known throughout the world"; "a known criminal")