I1N1E1X8C3U1S1A1B3L1E1
22 points
INEXCUSABLE is validvalid
not excusable [adj] : INEXCUSABLENESS [n], INEXCUSABLY [adv]
that cannot be excused [adj INEXCUSABLY]
not excusable [adj] : INEXCUSABLENESS [n], INEXCUSABLY [adv]
that cannot be excused [adj INEXCUSABLY]