[verb (dict form)] + 始末だ
[sentence (describing escalation)] + 始末だ
Often preceded by この / その / あの:
始末だ (しまつだ) is used to describe an undesirable outcome or end result that things have come to, often after a series of escalating problems or bad decisions. It carries a strong tone of criticism, frustration, or exasperation – the speaker is lamenting that the situation has deteriorated to such a regrettable point.
The word しまつ始末 literally means "circumstances" or "state of affairs," and when used in this grammar pattern, it conveys the nuance of "it has come to the point where…" or "things ended up in the sorry state of…"
Verb[dictionary form] + 始末だ – This is the most typical form, describing the unfortunate action or state that things have come to.
この始末だ / そんな始末だ – Used to refer back to a situation already described, meaning "this is the (sorry) state of things."
While 〜~てしまう expresses regret about a completed action, 始末だ is used to condemn or criticize the final outcome of a series of events. It is more judgmental and dramatic.