faultychange

noun
UK /ˈfɔːlti tʃeɪndʒ/
US /ˈfɔːlti tʃeɪndʒ/

A change that has a mistake in it.

The machine made a faultychange and stopped working.


OTHER MEANINGS

2. A switch or replacement that does not work right.

The faultychange in the wiring caused a short circuit.

3. A wrong adjustment made to a plan or system.

The faultychange in the schedule confused everyone.

4. A faulty act of giving back different money.

The cashier made a faultychange and gave me the wrong coins.