冷不防

lěngbùfáng

unexpectedly; suddenly

Wiktionary

Homographs

冷不防 lěngbufáng
  1. unexpectedly
  2. suddenly
  3. at unawares
  4. off guard
  5. against expectations

Entry Composition

=1 冷 Lěng surname Leng
=1 冷 lěng cold
=1 冷 líng only used in 冷凙／冷𪞝
=1 冷 lǐng only used in 㓑冷
2 不防 bùfáng
  1. to not expect; to not anticipate
  2. to not guard against; to be not vigilant