ETYMOLOGY
from Latin contradictorius (contradictory) + -ous
EXAMPLE (for adj. 1.)
“… after the grete clerk Plinius, libro quinto, capitulo decimo octavo, what distaunce is betwene cenit of oure hedde and a poynte contradictorious to hit in heuyn, soe moche distaunce is from the este in to the weste;…”
From: Polychronicon
By Ranulf Higden
Translated by John Trevisa, a1475
Lexicophilia 