No direct bengali meaning for the english word 'sinister' has been found. Check out the following synonyms for the same word which are very close in meaning.
- baleful - অমঙ্গলসূচক, অনিষ্টকর, মারাত্মক
- evil - মন্দ, অসৎ, অমঙ্গলজনক, অনিষ্টকর, ক্ষতি, দুর্ভাগ্য