U1N1E1N1D2U1R1A1B3L1E1
14 points
UNENDURABLE is validvalid
not endurable [adj] : UNENDURABLENESS [n], UNENDURABLY [adv]
that cannot be endured [adj UNENDURABLY]
not endurable [adj] : UNENDURABLENESS [n], UNENDURABLY [adv]
that cannot be endured [adj UNENDURABLY]