Intentional (adjective)

1. Done on purpose; deliberate.
2. Done with a specific aim or purpose.

Origin:

From latin intentionalis, from intentio, intention- "stretching, exertion, purpose".

Examples:

1. The car crash was intentional.
2. The mistake was unintentional.
3. The company's actions were intentional.
4. The artist's work is full of intentional symbolism.
5. The player's injury was not intentional.