| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | unknown |
| Synonyms: | alien, concealed, distant, exotic, far-off, faraway, foreign, hidden, little known, remote, undiscovered, unexplored, unheard-of, unidentified, unmapped, unnamed |
| Main Entry: | unexplored |
| Part of Speech: | adjective |
| Definition: | not explored |
| Synonyms: | uncharted, undetermined, unfathomed, uninvestigated, unplumbed |
| Antonyms: | explored |
| Main Entry: | undetected |
| Part of Speech: | adjective |
| Definition: | unfound |
| Synonyms: | little-known, obscure, uncharted, undiscovered, unexplored, unexposed, unfamiliar, unheard-of, unknown, untraveled |
| Main Entry: | undiscovered |
| Part of Speech: | adjective |
| Definition: | unfound |
| Synonyms: | little-known, obscure, uncharted, undetected, unexplored, unexposed, unfamiliar, unheard-of, unknown, untraveled |
| Main Entry: | unexposed |
| Part of Speech: | adjective |
| Definition: | unfound |
| Synonyms: | little-known, obscure, uncharted, undetected, undiscovered, unexplored, unfamiliar, unheard-of, unknown, untraveled |