sub-standard

listen to the pronunciation of sub-standard
الإنجليزية - الإنجليزية
A sub-standard service or product is unacceptable because it is below a required standard. Residents in general are poor and undereducated, and live in sub-standard housing
substandard
used of merchandise
substandard
falling short of some prescribed norm; "substandard housing"
substandard
not as good as the average, and not acceptable non-standard, standard standard
substandard
Of inferior quality; not meeting the minimum quality requirements
substandard
{s} below standard, below the norm, of low quality
sub-standard
المفضلات