for want of a better word/phrase/term
= used for saying that you cannot think of a more exact way of describing or explaining what you mean
= за відсутності кращого слова; через брак кращого терміну; важко підібрати правильне формулювання
We call our music ‘postmodern’ for the want of a better word.
They have problems, which, for want of a better word, we call psychological.
For years, Microsoft's mobile OS was plagued with a reputation of being, for want of a better word, stuffy.