Seemly, a. [Compar.Seemlier (; superl. Seeliest.]
Etymology: [Icel. s, fr. s 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. He had a seemly nose. Chaucer. I am a woman, lacking wit To make a seemly answer to such persons. Shak. Suspense of judgment and exercise of charity were safer and seemlier for Christian men than the hot pursuit of these controversies. Hooker.
Syn. -- Becoming; fit; suitable; proper; appropriate; congruous; meet; decent; decorous.
1 other Webster entry under this spelling
Seemly, 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.
Shades of meaning
Fernald has no entry of its own for seemly; he lists it under becoming.
He lists it without comment; the entries above explain its neighbors.