Which of the following words is correct?

• Unnecessary (adjective)
English Meaning: Not needed or wanted, or more than is needed or wanted.
Bangla Meaning: অপ্রয়োজনীয়; অনাবশ্যক; বাহুল্য; অহেতুক।

• Example sentence:
- I thought a lot of the violence in the movie was totally unnecessary.
- The idea is to kill the animal as quickly as possible without causing unnecessary suffering.

• Other form:
- Unnecessarily (adverb) - অনাবশ্যকভাবে; অনর্থক; খামকা।

Source:
1. Cambridge Dictionary.
2. Accessible Dictionary by Bangla Academy.