KEY: Precarious.SYN: Hazardous, peril, ous, uncertain, riskful, unassured, insecure,dubious, doubtful.ANT: Assured, certain, systematic, safe, immutable.
英语同义词词典收录了7932条英语词条,基本涵盖了全部常用同义词或反义词的辨析及翻译,是英语学习的有利工具。