silliness

Từ điển Oxford Advanced Learner 8th

sil·li·ness BrE [ˈsɪlinəs] ; NAmE [ˈsɪlinəs] noun uncountable
•Stop this silliness and get back to work!
Main entry: ↑silly_derived

• Từ đồng nghĩa / Synonyms:
  giddiness, absurdity, fatuity, fatuousness