A state of being uninteresting or dull.

नीरसता

English Usage: The lecture turned into a deep boring that no one could stay awake through.

Hindi Usage: व्याख्यान एक नीरसता में बदल गया जिसमें कोई भी जागृत नहीं रह सका।

Something that is profoundly uninteresting or tedious.

गहरे नीरस

English Usage: The deep boring book was left untouched on the shelf for months.

Hindi Usage: गहरी नीरस किताब महीनों तक अलमारी पर बिना छुए पड़ी रही।

To cause someone to feel uninterested or disengaged.

उदासीन करना

English Usage: His repetitive jokes deep boring the audience.

Hindi Usage: उसकी दोहराई जाने वाली चुटकुले दर्शकों को उदासीन कर रहे थे।