in·e·luc·ta·ble (ĭn'ĭ-lŭk'tə-bəl) adj. Not to be avoided or escaped; inevitable: "Those war plans rested on a belief in the ineluctable superiority of the offense over the defense"(Jack Beatty).
[Latin inēluctābilis : in-, not; see in-1 + ēluctābilis, penetrable (from ēluctārī, to struggle out of : ex-, ex- + luctārī, to struggle).] in'e·luc'ta·bil'i·ty n., in'e·luc'ta·bly adv.