na-adjective
special; exceptional; extraordinary
Describes something that is treated as a special case or exception, often in formal or administrative contexts.
今回は特例的な措置として認められた。
This time it was approved as an exceptional measure.
彼の才能は特例的だ。
His talent is extraordinary.
例外的 also means 'exceptional', but 特例的 often implies a special case established by rules or precedents.
Compound of 特例 (special case) + 的 (adjectival suffix).