lack of seriousness

the quality of being frivolous

तुच्छता

English Usage: His frivolousness in serious matters often annoyed his colleagues.

Hindi Usage: गंभीर मामलों में उसकी तुच्छता अक्सर उसके सहयोगियों को परेशान करती थी।

not having any serious purpose or value

तुच्छ

English Usage: She dismissed the frivolous arguments presented by her opponents.

Hindi Usage: उसने अपने प्रतिद्वंद्वियों द्वारा पेश किए गए तुच्छ तर्कों को खारिज कर दिया।