Synonyms for Secret

Top synonyms for “secret”: arcanum, clandestine, cloak-and-dagger, closed book, confidential, enigma, hidden, hole-and-corner(a), and 22 more below.

Definitions

1. (noun)something that baffles understanding and cannot be explained
   “how it got out is a mystery”
2. (noun)information known only to a special group
   “the secret of Cajun cooking”
3. (noun)something that should remain hidden from others (especially information that is not to be passed on)
   “the combination to the safe was a secret”
4. (adjective)not openly made known
   “a secret marriage”
5. (adjective)the next to highest level of official classification for documents
6. (adjective)having an import not apparent to the senses nor obvious to the intelligence; beyond ordinary understanding
   “mysterious symbols”
7. (adjective)not expressed
   “secret (or private) thoughts”
8. (adjective)conducted with or marked by hidden aims or methods
   “clandestine intelligence operations”
9. (adjective)indulging only covertly
   “a secret alcoholic”
10. (adjective)communicated covertly
    “their secret signal was a wink”
11. (adjective)(of information) given in confidence or in secret
    “this arrangement must be kept confidential”
12. (adjective)hidden from general view or use
    “a privy place to rest and think”

Definitions sourced from Princeton WordNet (BSD license).