unwitting
Definition
Not aware of the full facts; unintentionally involved in something.
বাংলা সম্পূর্ণ তথ্য সম্পর্কে অবগত নয়; অনিচ্ছাকৃতভাবে কিছুতে জড়িত।
Example
"He was an unwitting participant in the fraud, believing it was a legitimate business."