とんだtonda
1.

Describes a situation or event that is surprising and unfavorable, causing inconvenience or distress to those affected.

2.

Indicates a degree of absurdity or extreme deviation from common sense or reason, often used to emphasize something outrageous or unbelievable.

3.

Used in a positive, albeit paradoxical way, to express admiration or astonishment for something unexpectedly excellent or remarkable.

4.

Refers to circumstances that occur beyond one’s expectations, often implying a significant and usually negative impact.