The Collaborative International Dictionary of English v.0.48:

Seemly \Seem"ly\ (s[=e]m"l[y^]), a. [Compar.Seemlier
   (s[=e]m"l[i^]*[~e]r); superl. Seeliest.] [Icel.
   s[ae]miligr, fr. s[ae]mr becoming, fit; akin to samr same, E.
   same; the sense being properly, the same or like, hence,
   fitting. See Seem, v. i.]
   Suited to the object, occasion, purpose, or character;
   suitable; fit; becoming; comely; decorous.
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         He had a seemly nose.                    --Chaucer.
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         I am a woman, lacking wit
         To make a seemly answer to such persons. --Shak.
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         Suspense of judgment and exercise of charity were safer
         and seemlier for Christian men than the hot pursuit of
         these controversies.                     --Hooker.
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   Syn: Becoming; fit; suitable; proper; appropriate; congruous;
        meet; decent; decorous.
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The Collaborative International Dictionary of English v.0.48:

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