The term 'LESS GREEN' can be summarized by two crossword solutions: MATURER (7 letters) and RIPER (5 letters). MATURER is an adjective that means having reached full natural growth or development, while RIPER is an adjective that means having reached a stage of full maturity. Both words are used to describe something that has grown to its fullest potential, and in the context of the term 'LESS GREEN, ' they refer to something that has become more mature or developed than it was before.