[in.flex.i.ble] adj [ME, fr. L inflexibilis, fr. in- + flexibilis flexible] (14c) 1: rigidly firm in will or purpose: unyielding
2: not readily bent: lacking or deficient in suppleness
3: incapable of change: unalterable -- in.flex.i.bil.i.ty n -- in.flex.i.ble.ness n -- in.flex.i.bly adv syn inflexible, obdurate, adamant mean unwilling to alter a predetermined course or purpose. inflexible implies rigid adherence or even slavish conformity to principle "inflexible in their demands". obdurate stresses hardness of heart and insensitivity to appeals for mercy or the influence of divine grace "obdurate in his refusal to grant clemency". adamant implies utter immovability in the face of all temptation or entreaty "adamant that the work should continue". syn see in addition stiff