Superlative form of direct: most direct.(adjective)
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Use "directest" in a sentence
"No matter how near or far from the stable, when six o'clock came around she bolted for home and never missed the directest cross-road."
"Then he continued to the old trot, “O my mother, that where-to thou directest me is well; but this long while my mother saith to me, ‘I wish to marry thee,’ but I object replying, ‘I will not marry except on the sight of my own eyes.’”"
"They had by this time reacted the Gangoil fence, having taken the directest route for the house."