Seemly vs Unaffected - What's the difference?

Seemly is a related term of unaffected.

is that seemly is (of behavior) appropriate; suited to the occasion or purpose; becoming while unaffected is not affected or changed.

is appropriately, fittingly.

someone not , as by a disease.

(er)

(of behavior) Appropriate; suited to the occasion or purpose; becoming.

His behavior was seemly , as befits a gentleman.

* Shakespeare

I am a woman, lacking wit / To make a seemly answer to such persons.

* Hooker

Suspense of judgment and exercise of charity were safer and seemlier for Christian men than the hot pursuit of these controversies.

* apposite

* unseemly

* * * seemliness

(en adverb)

Appropriately, fittingly.

* 1590 , Edmund Spenser, The Faerie Queene , II.i:

The great earthes wombe they open to the sky, / And with sad Cypresse seemely it embraue [...].

(en adjective)

Not affected or changed.

Since I work from home, I was unaffected by the office move.

Lacking pretense or affectation; natural.

* 1812 , , Pride and Prejudice , Chapter 3:

Mr. Bingley was good-looking and gentlemanlike; he had a pleasant countenance, and easy, unaffected manners.

* unaffectedly * unaffectedness

(en noun)

Someone not , as by a disease.

* nonaffected (less common)