Antonyms of adj little-known

1 sense of little-known

Sense 1
little-known -- (unknown to most people)

INDIRECT (VIA unknown) -> known -- (apprehended with certainty; "a known quantity"; "the limits of the known world"; "a musician known throughout the world"; "a known criminal")

Similarity of adj little-known

1 sense of little-known

Sense 1
little-known -- (unknown to most people)
       => unknown (vs. known) -- (not known; "an unknown amount"; "an unknown island"; "an unknown writer"; "an unknown source")