Characteristic
Distinctive Feature
noun
A special indication on something or yourself is a special characteristic. It's a distinctive feature that exists.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
優柔不断と事なかれ主義が彼の特徴だ。
His personality is characterized by indecision and immobilism.