The Collaborative International Dictionary
Seemly \Seem"ly\ (s[=e]m"l[y^]), adv. [Compar. Seemlier; superl. Seemliest.] In a decent or suitable manner; becomingly.
Suddenly a men before him stood,
Not rustic as before, but seemlier clad,
As one in city or court or place bred.
--Milton.
Wiktionary
a. (en-superlativeseemly)
WordNet
See seemly
Usage examples of "seemliest".
So, on the morn they rode into the forest of adventures to a laund, and thereby they found a cross, and as they stood and hoved there came by them the fairest knight and the seemliest man that ever they saw, making the greatest dole that ever man made.
And when Sir Launcelot was so arrayed like a knight, he was the seemliest man in all the court, and none so well made.
Besides, it's long been their custom to do the real work of governing at informal convocations in the privacy of their homes, and when they gather here it's usually to solemnize enactments whose awkward elements they have weighed beforehand, and worded in the seemliest, least troublesome terms possible.