uptense 

Combination of intense and uptight

Mike was very uptense after his daughter got pregnant in school

uptense by Brooklyn God August 9, 2017

Untense 

The opposite of intense, something that lacks intensity. A very boring situation.

Bob: "Ugh, man this meeting is so Untense, I wish i could just leave."
Tom:"I have nothing to do today. It is going to be Untense."

Untense by spartanfan22 July 23, 2010

Utense 

An apparatus to dance with the devil.

Slang for

Hey Wayne!? You got a utense I could hit?

Utense by vAshArdsky March 1, 2020