nonefficacious
unspectacular
undelightful
butcherly
unimpressed
incongenial
nonspectacular
botchy
nonappealable
nothing to write home about
unconsolatory
unconsolable
nonconsolatory
unokay
unfanciable
unsagacious
semidecent
average
unmasterful
nonproximate
ill-formed
unacclaimed
nonappreciative
untremendous
inefficacious
unflattering
ungleeful
noneffective
nonsensate
undelightfully
unentertainable
unnicely
nonutile
unrecommendable
unsatisfying
nonsmooth
unlaudatory
noncorrective
unideally
unreliable
unrelievable
unsatisfactorily
nonharmonious
unaffable
unlively
disfavourable
unrefinable
nonenhancing
nonrefinable
unexceptional