/dɪˈmɪnɪʃ ||; dəˈmɪnɪʃ/verb [I,T] (formal 正式) to become or to make sth smaller or less important; decrease 减少；缩小；降低；削弱；贬低: The world's rainforests are diminishing fast. 世界上的雨林正迅速减少。The bad news did nothing to diminish her enthusiasm for the plan. 这个坏消息丝毫未减她对这个计划的兴致。