1. Not delineated on a chart.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• enchated,
• encharged,
• unhearted,
• unchaned,
• unhurted,
• inchanted,
• incharged,
• uncerted,
• uncarveds,
• uncharfed,
• unchareted,
• unchartred,
• unchated,
• uncherted,
• uncharteded,
• uncharetred,
• unchartered,
• unchastned,
• unchastend,
• uncheared

• uncarbonated,
• unshared,
• ungeared,
• ungarmented,
• unscramble,
• unsorted,
• ungaro,
• uncarved,
• uncared-for,
• unsharpened,
• unhazardous,
• ungarbed,
• unguaranteed,
• unscripted,
• unsheared,
• unchartered,
• uncarpeted,
• unshorn,
• uncharitable,
• uncharged,
• unguarded.

The adjective form of "uncharted" is "uncharted".

The plural form of the word "uncharted" is "uncharted". The word does not change when making it plural.

The singular form of the word "uncharted" is "uncharted".