irreflexive adjective. 
[ɪrɪ'flɛksɪv] L19.[from IR-2 + REFLEXIVE.]Not reflexive. Chiefly 
Math. & 
Logic, (of a relation) which never holds between a term and itself. Cf. 
REFLEXIVE adjective 6.
 ■   irreflexiveness noun M20. ■   irreflex'ivity noun M20.  [TahlilGaran] English Dictionary ▲