inaesthetic
unaesthetic
artless
crude
inartificial
banal
cumbersome
half-ruinous
illegible
inappropriate
indecent
indelicate
inept
overdraw
ribald
stagey
ungraceful
uninspired
unintellectual
unintelligible
unpolished
unpronounceable
unrealistic
unrefined
unromantic
unserviceable
unsocial
untrue
unworkable
artistic