antisymmetric

Meanings

1. Having the property that, for any two distinct elements of S, at least one is not related to the other via R; equivalently, having the property that, for any x, y ∈ S, if both xRy and yRx then x=y.
2. Whose sign changes on the application of a matrix transpose or some generalisation thereof:
3. Whose transpose equals its negative (i.e., Mᵀ = −M);
4. That changes sign when any two indices are interchanged (e.g., Tᵢⱼₖ = -Tⱼᵢₖ);
5. For which B(w,v) = -B(v,w).

Etymology

From anti- + symmetric.