convention vs conventionality

convention and conventionality both are nouns.

Word	Noun	Adjective	Verb	Adverb
convention	Yes	No	No	No
conventionality	Yes	No	No	No

As nouns, convention and conventionality are synonyms defined as:

convention and conventionality: orthodoxy as a consequence of being conventional

Other synonyms of convention include conventionalism.

convention (noun)	conventionality (noun)
the act of convening	orthodoxy as a consequence of being conventional
orthodoxy as a consequence of being conventional	unoriginality as a result of being too conventional
something regarded as a normative example	conformity with conventional thought and behavior
(diplomacy) an international agreement
a large formal assembly