Sometimes, father will ask me unexpectedly.

You should have refused such an unfair proposal.

It was an unfavorable day for baseball.

I inferred from our conversation that he was unhappy with his job.

He is thinking about the unified school program.

For any type of organisation, internal harmony and unity are important factors in deciding its success or failure.

The adjustment of reality to the masses and of the masses to reality is a process of unlimited scope, as much for thinking as for perception.

It is very important to tell the necessary from the unnecessary.

My telephone service was cut off because of unpaid bills.

The former production was significantly sterilized, and both productions remained too unpopular to be sustained on American television.