Words similar to invalid

Example sentences for: invalid

How can you use “invalid” in a sentence? Here are some example sentences to help you improve your vocabulary:

Example3.xml (invalid structure)
That assumption becomes invalid if highly skilled people can hide their abilities in an attempt to defraud the system.
If this assumption is invalid, then use of this definition can return very misleading results.
For WET test data submitted under NPDES permits, all required test conditions must be met or the test is considered invalid and must be repeated with a newly collected sample.
Any test not meeting the minimum test acceptability criteria is considered invalid.