dead2 S3 informal
'It's a crazy idea.' 'You're dead right!'
The road was dead straight.
Everything suddenly went dead still.
be dead (set) against something (=completely disagree with something)
Her family were dead against the marriage.
He was obviously dead drunk.
When he saw her, he stopped dead in his tracks (=suddenly stopped moving completely).
He was dead good-looking.
It sounded dead boring.
dead beat/tired (=very tired)