below the belt
UNFAIR, unjust, unacceptable, inequitable, unethical, unprincipled, immoral, unscrupulous, unsporting, sneaky, dishonourable, dishonest, underhand, low down, dirty, out of order, off, a bit thick, not cricket
be below the belt
if something someone says is below the belt, it is cruel and unfair

[TahlilGaran] English Idioms Dictionary ▲