Unusual or special in comparison to the ordinary; used to describe something particular or peculiar.
この機械は特殊な操作が必要なので、専門の訓練を受けた人が扱う。
This machine requires special operation, so it is handled by people with specialized training.
特殊な事情がある場合は、申請して相談してください。
If there are special circumstances, please apply and consult with us.
物理学の講義で特殊相対性理論について学んだ。
I studied the special theory of relativity in the physics lecture.