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 do domething based on your emotions rather than for rational reasons
I can't believe that Tom beat his classmate. He's always the one who let his heart rule his head.