least
US /liːst/
UK /liːst/

1.
smallest in amount, extent, or significance
:
•
He showed the least interest in the proposal.
•
This is the least expensive option.
:
1.
the smallest amount or degree
:
•
At least, you could have called.
•
I don't want to cause the least bit of trouble.
:
1.
to the smallest extent or degree
:
•
He was the person I least expected to see.
•
She was least concerned about the consequences.
: