adj.c.1600, from French aporetique, from Greek aporetikos, from aporeein "to be at a loss," from aporos "impassable, impracticable, very difficult; hard to deal with; at a loss," from a-, privative prefix (see a- (3)), + poros "passage" (see pore (n.)). if (window.googletag) {googletag.cmd.push(function() { googletag.display('dcomMobileSERPDisplayTopAd-300x250'); });} else {console.error('googletag not defined, dcomMobileSERPDisplayTopAd-300x250');}