Contradictory, a.
Etymology: [LL. contradictorius: cf. F. contradictoire.]
1. Affirming the contrary; implying a denial of what has been asserted; also, mutually contradicting; inconsistent. "Contradictory assertions." South.
2. Opposing or opposed; repugnant. Schemes . . . contradictory to common sense. Addisn.
1 other Webster entry under this spelling
Contradictory, n.; pl. Contradictories (.
1. A proposition or thing which denies or opposes another; contrariety. It is common with princes to will contradictories. Bacon.
2. pl. (Logic)
propositions with the same terms, but opposed to each other both in quality and quantity.
Shades of meaning
Fernald has no entry of its own for contradictory; he lists it under alien, incongruous.
He lists it without comment; the entries above explain its neighbors.