was at fault (verb) misbehave: act in inappropriate manner
Sinonime: act up, be at fault, be bad, be dissolute, be guilty, be immoral, be indecorous, be insubordinate, be mischievous, be out of line, be out of order, be reprehensible, bend the law,
carry on, cut up,
deviate, do evil, do wrong,
fail, fool around, get into mischief, go astray, go wrong, make trouble, misconduct,
offend, roughhouse,
sin, sow wild oats, take a wrong turn,
transgress, trespass
Antonime: behave,
obey