From WordNet (r) 2.0 [wn]:
From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:
41 Moby Thesaurus words for "undiscovered": able, enigmatic, incalculable, incognizable, invisible, mysterious, puzzling, sealed, strange, unapparent, unapprehended, unascertained, unbeknown, uncharted, unclassified, undetected, undisclosed, undiscoverable, undivulged, unexplained, unexplored, unexposed, unfamiliar, unfathomed, unheard, unheard-of, unidentified, uninvestigated, unknowable, unknown, unperceived, unplumbed, unrevealed, unseen, unsolved, unspied, unsuspected, untouched, untraced, untracked, virgin
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