The transformer with the most positive outlook on life.
Optimist Prime thinks the world is a beautiful place even when Negatron is destroying it.
by Airgaf February 24, 2009
1 more definition
Someone who always looks on the brightside in even the most depressing situation.
Klein thanked God he at least had most of his leg. He is such an optimist prime.
by Optimist Prime April 30, 2007