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несерьёзность

noun, feminine, inanimate, uncountable

very rarely used word (top 50,000)noun in -ь

1.
lack of seriousness, unfoundedness, lightness, frivolity, unimportance

Declension

This noun exists in singular form only.

	singular	plural
nom.nominative	несерьёзность
gen.genitive	несерьёзности
dat.dative	несерьёзности
acc.accusative	несерьёзность
inst.instrumental	несерьёзностью
prep.prepositional	несерьёзности

Word family

несерьёзныйnot serious
adjective
несерьёзностьlack of seriousness
nounfeminine

Contributions

Lisa edited declension 6 years ago.
Lisa edited noun basics and declension 6 years ago.
Lucian edited noun basics and declension 6 years ago.
Lucian edited word type 6 years ago.

Other Sources (auto generated)

Wiktionary PONS bab.la Reverso

More about the translations

frivolity lack lightness of seriousness unfoundedness unimportance