As nouns the difference between becoming and dueness
is that becoming is (chiefly|philosophy) the act or process in which something becomes while dueness is quality of being due; debt; what is due or becoming.
As a verb becoming
is .
As an adjective becoming
is pleasingly suitable; fit; congruous.
becoming
Verb
(head)
Noun
(
en noun)
(chiefly, philosophy) The act or process in which something becomes.
Adjective
(
en adjective)
pleasingly suitable; fit; congruous
decent, respectable