improvement
改良
同義語・類似語
advance, betterment, melioration, ,
関連語
accommodation, airing, clarification, conservation, correction, development, enrichment, fix, fixture, mend, perfection, preservation, recovery, refinement, reform, reformation, refurbishment, repair, reparation, restoration, resurgence, revitalization, shift, status, transformation, upturn, ventilation, ,
反意語
decline, ,