U1N1A1T1T1A1I1N1A1B3L1E1
14 points
UNATTAINABLE is validvalid
not attainable [adj] : UNATTAINABILITY [n], UNATTAINABLY [adv]
not attainable [adj UNATTAINABLY]
not attainable [adj] : UNATTAINABILITY [n], UNATTAINABLY [adv]
not attainable [adj UNATTAINABLY]