If you say that something is ~, you mean that it lasts only for a short time.
Most teenage romances are ~.
= transient
ADJ
If you say that something is ~, you mean that it lasts only for a short time.
Most teenage romances are ~.
= transient
ADJ
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012