Inadmissible (adjective)

1. Not able to be allowed or permitted; not admissible.
2. Not able to be considered, admitted, or used as evidence in a court of law.
3. Not suitable or appropriate for a specific purpose.

Origin:

From the latin in- (not) + admittere (to admit), from ad- (to) + mittere (to send).

Examples:

1. The evidence was inadmissible in court due to its questionable origin.
2. The witness was inadmissible due to lack of credibility.
3. The inadmissible behavior was cause for disciplinary action.
4. The inadmissible application was not accepted by the committee.
5. The inadmissible products were removed from the market.