inexplicable (adj) - incapable of being explained, understood, or accounted for [in-ik-splik-uh-buhl]
BREAKDOWN: IN- (not) + EX- (out) + PLIC- (plait, fold) + -ABLE (able to be)
explication is the act or state of explaining or interpreting
See also: explicate
“Friendship is inexplicable; it should not be explained if one doesn't want to kill it.” —Max Jacob