synonym | closed bookenigmamystery |
hypernym | perplexity |
hypernym | infoinformation |
hyponym | confidenceopen secrettrade secret |
similar | classified |
similar | concealed |
synonym | confidential |
similar | private |
synonym | unavowed |
similar | unacknowledged |
synonym | clandestinecloak-and-daggerhole-and-cornerhugger-muggerhush-hushsurreptitiousundercoverunderground |
similar | covert |
similar | covert |
similar | covert |