• (British) IPA: /ˈnɒndɪskɹɪpt/
• (America) IPA: /nɑndəsˈkɹɪpt/

nondescript

1. (biology, now rare) Not described (in the academic literature).

   Synonyms: undescribed, unidentified

2. Without distinguishing qualities or characteristics.

   Synonyms: unexceptional

   He drove a nondescript silver sedan.

• French: banal, quelconque
• Spanish: indescriptivo

nondescript (plural nondescripts)

1. (chiefly, biology) A species or other type of creature that has not been previously described or identified. [from 17th c.]
   • 1791, Thomas Paine, Rights of Man:

     Imagination has given figure and character to centaurs, satyrs, and down to all the fairy tribe; but titles baffle even the powers of fancy, and are a chimerical non-descript.

2. An undistinguished, unexceptional person or thing. [from 18th c.]
   • 1851 November 13, Herman Melville, chapter 6, in Moby-Dick; or, The Whale, 1st American edition, New York, N.Y.: Harper & Brothers; London: Richard Bentley, OCLC 57395299 ↗:

     In thoroughfares nigh the docks, any considerable seaport will frequently offer to view the queerest looking nondescripts from foreign parts.

3. (UK) An unmarked police car.
   • 1970, Peter Laurie, Scotland Yard: a study of the Metropolitan Police (page 118)

     By a nice British compromise, the enforcement car — visible just then as a white spot on the television screen — has nothing externally to show its police affiliation, but unlike the CID's nondescripts, carries two large policemen in uniform.