| by stealth(expression, idiom, life, reply, unseen) |
| on the quiet(expression, idiom, life, reply, unseen) |
| secretly(adverb, show, clandestine, furtively, slyly) |
| clandestinely(noun, adverb, show, clandestine, quietly) |
| covertly(noun, adverb, show, quietly, secretly) |
| furtively(noun, adverb, clandestine, quietly, secretly) |
| incognito(adverb, furtively) |
| private(adjective, secret, hidden, sneaky, covert) |
| sub rosa(adverb, show, clandestine, quietly, personally) |
| surreptitiously(noun, adverb, clandestine, quietly, secretly) |
| on the QT(expression, adjective, idiom, adverb, secret) |
| on the q.t(noun, adverb) |
| or Q.T.(noun, adverb) |
| privately(adverb, clandestine, quietly, secretly, personally) |
| quietly(noun, adverb, secretly, personally, privately) |
| secret(adjective, private, hidden, sneaky, covert) |
| slyly(noun, adverb, clandestine, quietly, secretly) |
| stealthily(noun, adverb, clandestine, quietly, secretly) |
| surreptitious(adjective, secret, sneaky) |
| aside |