変だな

that's strange

→ 変だ
phrase Rare #30,430
that's strange A casual way to express that something seems strange or odd; な adds a reflective or mildly surprised tone.
JA: この音、変だな。
EN: This sound is strange.

変だな。

That's strange.

— アトランティス 失われた帝国 (2001)

なんか変だな。

Something seems off.

変だな

That's strange.

— デッド・ドント・ダイ (2019)

確かに変だな

That’s definitely weird.

— The Wind Rises (2013)