1. Absolute; unqualified; stated without conditions or exceptions.
Usage: Often used to emphasize the strength or finality of a statement or denial.
2. Relating to or belonging to a category or categories.
Usage: Less common than the first sense; used in formal or technical contexts.

Examples

• The coach gave a categoric refusal to discuss the trade rumors.
• She made a categoric statement that she would never return to that company.
• His denial was categoric and left no room for doubt.
• The government issued a categoric ban on the use of the chemical.
• The witness provided categoric evidence of the defendant's whereabouts.
• A categoric distinction must be made between the two groups.