major improvement
Synonyms for major
important (significant, substantial, momentous
>>)
big
main (principal, primary, key
>>)
considerable (substantive, essential, main thing
>>)
basic
sizeable
chief
much
dur
See all synonyms for majorSynonyms for improvement
enhancement (advancement, betterment, advance
>>)
refinement
rehabilitation
upgrade
melioration
raising (enhancing, boosting, rising
>>)
See all synonyms for improvement