GRE TOEFL uncharted Definition Not yet explored, mapped, or understood. Example "They ventured into the uncharted waters of the southern ocean." Sign in to save GRE Quiz → TOEFL Quiz → ← uncanny unconditional → Study tips featuring "uncharted" Map Each Word Into a Connected Network Force Contrast Between Two Similar Words Track How TOEFL Words Behave With Others Related words GRE awe GRE smithereens GRE abacus SAT abase GRE abash GRE abate GRE abbreviate GRE abbreviation SAT abdicate SAT abdomen GRE abduct GRE aberrant