1. (of unknown regions) not yet surveyed or investigated
   - chartless, uncharted

See also: unknown

• unseeable
• unseeded
• unseeing
• unseeingly
• unseemliness
• unseemly
• unseen
• unsegmented
• unsegregated
• unselected
• unselective
• unselfconscious
• unselfconsciously
• unselfconsciousness
• unselfish
• unselfishly
• unselfishness
• unsensational
• unsensible
• unsent
• unsentimental
• unsentimentally
• unserviceable
• unservile
• unset