A more thorough explanation:

Definition: Provisional is an adjective that means something is temporary or conditional.

Examples:

• A provisional injunction was issued by the court to prevent the company from selling the product until the safety concerns were addressed.
• The country established a provisional government after the revolution until a permanent government could be formed.

The first example shows that the injunction is temporary and will only be in effect until the safety concerns are addressed. The second example shows that the government is conditional and will only be in place until a permanent government can be formed. Both examples illustrate the definition of provisional as something that is not permanent or final.