in a way that is not possible to be changed

変更不能で, 確定済みで
in the same situation for such a long time that it is no longer appealing

マンネリにはまって, 同じ毎日に行き詰まって
to reach a significant stage in development and become accepted by the majority of people

広く定着する, 主流になる
a complete or notable change compared to what the situation originally was

大きな変化, 劇的な変化
someone who only tends to stay at a place, particularly a house, for a relatively short period of time before moving on to another

渡り鳥のような人, あちこちを渡り歩く人
a combination of both good things and bad things that can happen to one

浮き沈み, 良い時も悪い時も
to be passed to another owner

所有者が変わる, 持ち主が替わる
to allow another person to continue one's work or to take care of one's responsibilities

後を託す, 役目を引き継がせる
something that becomes so familiar to someone that it can be done without thinking

第二の天性, 無意識にできること
to make changes to one's behavior or mindset in order to become a better and more responsible person

心を入れ替える, 生まれ変わる
to put a stop to one's habit, particularly one that is harmful or dangerous

悪い癖をやめる, 悪習を断つ
a situation or experience that involves significant ups and downs, sudden changes, or intense shifts in emotions, circumstances, or events

激しい浮き沈み, 波乱続き
to fundamentally transform something, often with far-reaching consequence

何かを根本から変える, 様相を一変させる
a regular or repeated change

移り変わり, 浮き沈み
to stay the same despite time and progress in society, technology, or culture

時代に取り残されている, 昔のまま止まっている
to let go of outdated practices or beliefs and embrace changes

古いものに区切りをつける, 古い考えを捨てる
something that is changing all the time and cannot be easily predicted

変わり続ける状況, 先の読めない情勢
(especially of prices) to increase suddenly and dramatically

急騰する, 跳ね上がる
to experience a sudden and significant decline in one's emotional state, confidence, financial situation, etc.

急落する, がくんと落ち込む
to not interfere with or try to improve something that is already satisfactory or functioning well

うまくいっているものに手を出さない, 余計なことをしない
to follow the current plans, expectations, or rules, often indicating a need to adjust, cooperate, or keep up to date with others or the existing situation

空気を読んで合わせる, 周りに合わせる
to completely disrupt someone's life, plans, or normal situation
to disturb or change something completely and chaotically
