Important Idioms and Phrases starting with “U”

By Naveen Singh|Updated : February 19th, 2019

Dear gradians,

Today we are posting Idioms & Phrases beginning with “U”. we hope you liked the previous articles. Here’s a small task for you guys post idioms and phrases which you come across that has not been covered here and ask for sentences from others. This would boost your prep and make this more interesting and interactive. So here is a list of Idioms and Phrases with U:

Important Idioms and Phrases starting with “U”

Idioms and Phrases



Under the cloud


In our country politician are always under the cloud.

Under the rose


They used to meet each other under the rose.

Under one’s nose

Directly in front of

Terrorist fled from jail under the nose of the superintendent

Under duress

Under pressure

He claimed that he signed the confession under duress.



Weak person in comparison to other

He always supports the underdog people in his constituency.

Uncharted waters

A situation that is new and not known

For arts, student differentiation and integration are uncharted water.

Under fire

Being criticised

After coal scam, UPA government is under fire.

Upper crust

High-class people, often rich and high social status

Ambani brothers are the upper crust in India.

Upper hand

Dominating and controlling position

The USA has an upper hand in the world.

Under lock and key

Stored securely

Money in the bank is under lock and key, so there is no harm in depositing your money.

Under someone heel

Under control of someone else

The ram is under the heels of Mohan.

Under the knife

Undergo a surgery

Ashok is under the knife in City hospital for his heart surgery.

Under the weather

Feel sick and lack of energy

He is under the weather due to climate change.

Note: if you have missed out on previous articles on Idioms and Phrases then you can check:

Important Idioms and Phrases for CDS Exam

All the best

Team BYJU'S Exam Prep



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