ameliorative vs remedial

ameliorative

adj
  • Able to repair or ameliorate. 

  • Of or relating to conceptual engineering, the normative study of which conceptual demarcation is most conducive to solve the problems the concept is a priori taken to solve. 

  • Suggesting or relating to a positive or approving evaluation. 

noun
  • A linguistic unit (such as a word, morpheme) that implies a positive or approving evaluation. 

  • That which betters or improves. 

remedial

adj
  • curative; providing a remedy 

  • intended to remediate (i.e., correct or improve) deficient skills in some subject 

noun
  • A pupil enrolled in special classes to improve deficient skills. 

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