ADJ.
brilliant
HONEST-TO-GOD + NOUN
saint, truth
adj
real, true, actual, genuine, bona fide
He's an honest-to-God saint; I don't know what I would do without him!
adv
Alternative form of honest to God.
She is honest-to-God brilliant.
adjective — (used informally especially for emphasis) real or genuine
It's honest-to-god truth that I have lost my documents, your honour. I did not plan.