also: ステディー
na-adjective
Used as a na-adjective to describe something that is steady, stable, or constant, often in a casual or colloquial context.
彼の仕事ぶりはいつもステディだ。
His work is always steady.
このアプリは動作がステディで使いやすい。
This app runs steadily and is easy to use.
noun
steady relationship; going steady
Refers to a steady romantic relationship, especially the state of dating exclusively. Often used in the phrase ステディな関係.
彼女とはもう半年もステディな関係が続いている。
I've been in a steady relationship with her for half a year now.
高校のとき、初めてステディができた。
In high school, I had my first steady girlfriend.
Borrowed from English 'steady'. The variant ステディー reflects an elongated final vowel, possibly influenced by English pronunciation or Japanese loanword adaptation patterns.