motivational vs promising

motivational

adj

  • Tending or intended to motivate. 

promising

adj

  • Encouraging and inspiring confidence. 

  • Showing promise, and likely to develop in a desirable fashion. 

  • a promising young apprentice 

noun

  • The act of making a promise. 

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