'Top secret' definitions:
Definition of 'Top secret'
From: GCIDE
- Top secret \Top" sec`ret\, a.
- 1. (Mil.) containing information whose disclosure could result in grave danger to the national security; -- the highest of the three commonly known levels of national security classification, the others being confidential and secret.
- Note: The names of the higher levels of secrecy classification are themselves classified secrets. [PJC]
- 2. kept secret by very careful and strict rules for disclosure. [PJC]
Synonyms of 'top secret'
From: Moby Thesaurus
- arcane,
- cabalistic,
- censored,
- classified,
- close,
- closed,
- concealed,
- cryptic,
- dark,
- enigmatic,
- esoteric,
- hermetic,
- hidden,
- hush-hush,
- latent,
- mysterious,
- occult,
- restricted,
- secret,
- smothered,
- stifled,
- suppressed,
- ulterior,
- unbreatheable,
- under security,
- under wraps,
- undisclosable,
- undisclosed,
- undivulgable,
- undivulged,
- unrevealable,
- unrevealed,
- unspoken,
- untellable,
- untold,
- unutterable,
- unuttered,
- unwhisperable