unsatisfactory
adjective
[ ˌʌnsatɪsˈfakt(ə)ri ]
• not satisfactory; not good enough.
• "years of living in unsatisfactory rented accommodation"
Similar:
disappointing,
dissatisfying,
undesirable,
disagreeable,
displeasing,
deplorable,
inadequate,
unacceptable,
unworthy,
poor,
bad,
substandard,
weak,
mediocre,
lacking,
not good enough,
defective,
deficient,
insufficient,
faulty,
imperfect,
inferior,
terrible,
intolerable,
insufferable,
impermissible,
inadmissible,
inappropriate,
unsuitable,
lousy,
sad,
leaving a lot to be desired,
no great shakes,
not much cop,
not up to par,
not up to scratch,
• another term for unsafe.