hissy vs sibilant

hissy

adj
  • Making a hissing sound. 

  • Accompanied with hisses. 

  • Childish or petulant. 

noun
  • A tantrum, a fit. 

sibilant

adj
  • Characterized by a hissing or hushing sound such as the s or sh in sack or shack. 

noun
  • A consonant having a hissing or hushing sound such as the s or sh in sack or shack. 

How often have the words hissy and sibilant occurred in a corpus of books? (source: Google Ngram Viewer )