What are the best answers for “advancement toward better conditions or policies or methods”?

progressiveness, progressivity.

How many letters does the top answer for “advancement toward better conditions or policies or methods” have?

The most common answer is progressiveness (15 letters).

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

progressiveness 15 letters wn-def

advancement toward better conditions or policies or methods

progressivity 13 letters wn-def

advancement toward better conditions or policies or methods