"not conformable to the rules or principles of art" [Century Dictionary], 1836, from in- (1) "not" + artistic. Inartistical is attested from 1849. Related: Inartistically.
Entries linking to inartistic
in- 1
word-forming element meaning "not, opposite of, without" (also im-, il-, ir- by assimilation of -n- with following consonant, a tendency which began in later Latin), from Latin in- "not," cognate with Greek an-, Old English un-, all from PIE root *ne- "not."
In Old French and Middle English often en-, but most of these forms have not survived in Modern English, and the few that do (enemy, for instance) no longer are felt as negative. The rule of thumb in English has been to use in- with obviously Latin elements, un- with native or nativized ones.
artistic adj.
"pertaining to art or artists" in any sense, but especially in the aesthetic sense; also "characterized by conformity with one of the fine arts; displaying excellence of design and execution," 1753, from French artistique, from artiste (see artist). Native artist-like was recorded from 1711; artistly from 1754; artistical from 1798. Related: Artistically.