そむ背somuくku
1.
To take action that opposes or defies the wishes or commands of another, often implying a sense of rebellion or resistance to authority.
2.
To reject or turn away from societal norms or expectations, demonstrating a conscious choice to act in a manner that contradicts established principles.
3.
To betray or act against a person or principle, signifying a breach of loyalty or commitment.
4.
To violate an agreement or rule, indicating a deliberate deviation from a stated promise or established law.
5.
To turn one's back on something, suggesting a physical or metaphorical withdrawal from a situation or relationship.
Example:
それは私の期待にそむいた。