1A person's character or personality — the innate or developed traits and tendencies that shape how they think and behave, especially in relation to others.
彼女は明るく社交的な性格だ。
She has a cheerful, sociable personality.
育った環境は性格の形成に大きく影響すると言われている。
The environment one grows up in is said to greatly influence the formation of one's personality.
彼とは性格が正反対なのに、なぜか気が合う。
Our personalities are complete opposites, but somehow we get along.
猫の性格は個体によって大きく異なる。
A cat's personality can vary greatly from individual to individual.
2The general nature or type of a thing or event — often paired with words like 'formal,' 'political,' or 'experimental' to describe its character.
この問題は技術的というより、政治的な性格が強い。
This issue has more of a political character than a technical one.
その会議は形式的な性格が強く、実質的な議論はほとんどなかった。
That meeting was largely formal in nature, with hardly any substantive discussion.
このプロジェクトは実験的な性格を持っている。
This project has an experimental character.