Without any questions; certain or unambiguous.

बिना सवाल का

English Usage: The decision was questionless, leaving no room for debate.

Hindi Usage: निर्णय बिना सवाल का था, जिससे बहस की कोई गुंजाइश नहीं थी।

Something that requires an answer or is a subject of inquiry.

सवाल

English Usage: He had a question about the homework assignment.

Hindi Usage: उसे होमवर्क असाइनमेंट के बारे में एक सवाल था।

In a manner that is free from questions.

सवाल के बिना

English Usage: She accepted the offer questionlessly.

Hindi Usage: उसने प्रस्ताव को बिना सवाल के स्वीकार कर लिया।