あき呆akiれるreru
1.
To experience a sense of disbelief or shock in response to someone's actions or statements that are considered unreasonable or unexpected, often leading to feelings of being overwhelmed or unable to react appropriately.
2.
To encounter a situation or behavior that defies common sense or everyday norms, resulting in a combination of astonishment and frustration at the absurdity of it.
3.
To be taken aback by something so surprising or outrageous that it leaves one feeling both incredulous and unable to find words to express the reaction.
4.
To feel a mix of dismay and surprise when faced with someone's unreasonable or excessively bold statements, evoking a sense of exhaustion from having to process such behavior.
Example:
君の厚かましいのには呆れたよ。