Be no mean feat idiom
If an achievement or a result is no mean feat, it is considered to be highly significant, strenuous or greatly remarkable.
It is no mean feat to find a job in Italy as a foreigner.
Getting a B in his literature class is no mean feat. He is notorious for being an insatiable professor.
He got a full score in the national exam of Physics, which was considered to be no mean feat by everyone else.
someone will be successful.
Travelling to different places helps you expand your knowledge.
The results of one's hard efforts.
A notable success or achievement, especially one in a long string or list of similar ones.
When you describe something as a howling success, you mean that it is outstandingly successful.
The verb "be" should be conjugated according to its tense.