consternation

 
Pronunciation: /kɒnstəˈneɪʃ(ə)n/

noun

[mass noun]
  • a feeling of anxiety or dismay, typically at something unexpected: to her consternation her car wouldn’t start

Origin:

early 17th century: from Latin consternatio(n-), from the verb consternare 'lay prostrate, terrify' (see consternate)