Antonyms of adj chartless

1 sense of chartless

Sense 1
chartless, uncharted, unmapped -- ((of unknown regions) not yet surveyed or investigated; "uncharted seas")

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 chartless

1 sense of chartless

Sense 1
chartless, uncharted, unmapped -- ((of unknown regions) not yet surveyed or investigated; "uncharted seas")
       => unknown (vs. known) -- (not known; "an unknown amount"; "an unknown island"; "an unknown writer"; "an unknown source")

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