6261. These recent developments seem to be quite adverse to our interests.

✅ The correct answer is option D.
Favourable : expressing approval.

Indifferent : having no particular interest or sympathy; unconcerned.

Unfortunate : having or marked by bad fortune; unlucky.

Opposed : anxious to prevent or put an end to; disagreeing with.

Adverse : preventing success or development; harmful; unfavourable.

Synonym of Adverse is Opposed