As nouns the difference between artlessness and unsophistication
is that artlessness is the state or quality of being artless while unsophistication is absence of sophistication; the quality of being unsophisticated.
artlessness
English
Noun
(-)
the state or quality of being artless
the state or quality of being innocent; naivete
unsophistication
English
Noun
(-)
Absence of sophistication; the quality of being unsophisticated.