adjective

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Other / Surprise

unthinkable - So out of the ordinary that it cannot be imagined as possible

When Genghis Khan was born in 1162, it was unthinkable that someone from his nomadic tribe could conquer most of the known world - but that is what he did.

verb

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Good / Smart

unravel - To undo twisted, knitted, or woven threads.

When the earphone wires gets twisted, you have to slowly and calmly unravel them.

adjective

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Bad / Weak

untenable - An idea or position that cannot be defended against criticism

With new accusations surfacing every day, though Melissa claimed that she was totally innocent, her hold on her job was becoming increasingly untenable.

verb

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Bad / Nervous

Url

vacillate - To waver between different opinions or actions; to be indecisive.

He would vacillate between a career in business - that would be more secure - or in acting, something that he loved to do.

adjective

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Good / Good

Url

upright - Showing a strict regard for what is morally correct.

Henry Fonda played roles of upright men who were always honest even under the greatest pressure.

adjective

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Bad / Dirty

Url

unkempt - Messy or untidy in appearance, especially referring to hair or clothing, giving a neglected impression.

His unkempt hair made it look like he had just rolled out of bed.

adjective

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Good / Calm

unfazed - Not surprised or worried

The soldier had nerves of steel and was unfazed by the bullets whizzing all around him

verb

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Other / Fast

Url

veer - To change direction suddenly

Randy slammed on the brakes when the car in the next lane suddenly veered in front of him.

adjective

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Good / Happy

upbeat - Having an attitude that is positive, hopeful, and optimistic.

Even though there was a recession, Francine was upbeat about her chances of getting an excellent job after graduating business school.

noun

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Bad / Dangerous

Url

upheaval - A sudden and dramatic change or disruption, especially one that causes confusion and societal disorder.

The economic downturn led to political upheaval and widespread unrest across the nation.

adjective

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Good / Important

Url

utmost - The greatest or highest degree or amount of something; as far as possible; to the maximum extent

During the emergency, the authoriies emphasized that it is of the utmost importance that people follow the safety guidelines.

adjective

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Bad / Crazy

unhinged - Mentally unbalanced and unstable

Trevor crossed the street when he saw the unhinged person yelling at him.