Symmetry
Balance
noun
Things are equal in how they're arranged. They have perfect symmetry and balance.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
彼女はとても均整のとれた体形をしている。
She has a very well proportioned body.
均整のとれた美しい建築に思わずためいきが出た。
I couldn't help but sigh at the beautifully balanced and symmetrical architecture.
ジャニーズのアイドルって、均整のとれた王子様っぽい子が多いよね。
Johnny's idols often have a prince-like, well-balanced appearance, don't they?
ショパンのポロネーズ第11番ト短調って、7才の時に作曲した作品なのに実に均整がとれている作品ですよね。
Chopin's Polonaise No. 11 in G minor, even though it was composed when he was seven years old, is truly a well-balanced piece, isn't it?