Justifiable (adjective)

Capable of being justified or explained; reasonable, defensible.

Origin:

From latin justificare, meaning "to justify".

Examples:

1. The company's decision was justifiable given the circumstances.
2. His actions were not justifiable under any circumstances.
3. The police's use of force was justifiable given the threat level.
4. The punishment was justifiable given the severity of the crime.
5. He had a justifiable reason for being late to the meeting.