effusive vs unflappable

effusive

adj
  • Gushy; unrestrained, extravagant or excessive (in emotional expression). 

  • Extrusive; having solidified after being poured out as molten lava. 

unflappable

adj
  • Remaining composed and level-headed at all times; impossible to fluster; not becoming frustrated or irritated easily. 

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