Unprovable
a. 无法证明的, 无法证实的
✅ 同义词
🗣️ 情景例句
He's cheating on his wife.
他对妻子不忠。
Selt-trust is the essence of heroism.
自信是英雄的本色。
They are arguing over who should pay the bill.
他们为谁应该付款而争论不休。