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.
ワニカニの最大の特徴はなんですか？
What is WaniKani's most significant feature?
この会社の特徴は、他とは違う日本語学習教材を提供しようとしているところです。
One of the distinctive features of this company is attempting to provide unique Japanese language learning materials.
優柔不断と事なかれ主義が彼の特徴だ。
His personality is characterized by indecision and a tendency to avoid conflict.