無理な話だ

that's impossible

→ 無理だ
phrase Rare #38,203
that's impossible Used to say that something is unreasonable, unrealistic, or impossible. It can sound dismissive, depending on context.
JA: 今から一人で全部やるなんて、無理な話だ。
EN: Trying to do everything by yourself starting now is impossible.

無理な話だ

That's impossible.

— エブリシング・エブリウェア・オール・アット・ワンス (2022)

それは無理な話だ

That's impossible.

そんな高い車を買うのはとても無理な話だ

Buying such an expensive car is completely out of the question.

無理な話だ無理をするな

That's impossible; don't push yourself.