By stealth adverb
Used when you move or act quietly and carefully so as not to be seen or heard, especially in an undetected way; silently and secretly.
Company policy had been changed by stealth without consultation; therefore, the meeting was immediately held yesterday.
The thieves broke into my house by stealth. We lost a lot of valuables.
A thing is known about by only a few people and kept hidden from others because it makes somebody feel ashamed.
Very quiet
To be secretly working together
A person who contributes important work to the organization but is kept secret.
To secretly punish or rebuke someone for doing something.
The origin of this expression is not clear.
To be very wet
Because of forgetting bringing an umbrella, I look like a drowned rat when it rains.