Definition of cautious. : careful about avoiding danger or risk cautious investors cautious optimism.
37 CFR 5.2 Secrecy order. ( 1 a) When notified by the chief officer of a defense agency that publication or disclosure of the invention by the granting of a patent would be detrimental to the national security, an order that the invention be kept secret will be issued by the Commissioner for Patents.
Webster Dictionary (0.00 / 0 votes) Rate this definition: Secret (adj) hidden; concealed; as, secret treasure; secret plans; a secret vow. Secret (adj) withdraw from general intercourse or notice; in retirement or secrecy; secluded. Secret (adj) faithful to a secret; not inclined to divulge or betray confidence; secretive. Secret (adj) separate; distinct. Secret (adj)