seemliest
Webster's Dictionary (GCIDE)
Seemly \Seem"ly\ (s[=e]m"l[y^]), adv. [Compar. Seemlier; superl. Seemliest.] In a decent or suitable manner; becomingly. [1913 Webster]
Suddenly a men before him stood, Not rustic as before, but seemlier clad, As one in city or court or place bred. --Milton. [1913 Webster]