mindful vs solicitous

mindful

adj
  • Being aware (of something); attentive, heedful. 

noun
  • As much as can be held in one's mind at a time. 

solicitous

adj
  • In a conscientious way, often with kindness. 

  • In an anxious or distressed way. 

  • In an eager way. 

  • Disposed to solicit; eager to obtain something desirable, or to avoid anything evil. 

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