deductive vs vacillating

deductive

adj

  • Based on inferences from general principles. 

  • Of, pertaining to, or based on deduction (process of reasoning). 

vacillating

adj

  • Liable to vacillate. 

noun

  • Vacillation. 

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