No direct bengali meaning for the english word 'mightily' has been found. Check out the following synonyms for the same word which are very close in meaning.
- strong - প্রবল, জোরাল, বলিষ্ঠ, দৃঢ়
- mighty - শক্তিমান, ক্ষমতাশালী, বলশালী, মহৎ, অদ্ভূত, সাহসী