peevish vs placid

peevish

adj
  • Characterized by or exhibiting petty bad temper, bad-tempered, moody, cross. 

  • Easily annoyed, especially by things that are not important; irritable, querulous. 

  • Constantly complaining, whining; childishly fretful. 

placid

adj
  • calm and quiet; peaceful; tranquil 

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