Opposite words for metaphor :
To abandon the metaphor, man will determine by the use of his reason what he wishes life to be; he will choose the highest forms of it to which he can attain. "The Book of Life: Vol. I Mind and Body; Vol. II Love and Society", Upton Sinclair.
" Your metaphor, Mac, suggests a picture. "Skinner's Dress Suit", Henry Irving Dodge.
Not a whiff of metaphor or extravagance about that statement, Joan. "A Son of the Immortals", Louis Tracy.
They both laughed a little at Louisa's mixed metaphor and the laughter cleared away the last trace of the tears. "Rainbow Hill", Josephine Lawrence.