其反义词为immorality，miscreancy
disadvantage，wickedness等等
virtue
n. 高尚的道德，德行美德，优秀品质优点，长处<古>（尤指妇女的）贞操功效（传统基督教天使学）道德天使（天国九级制度的第七级）（virtues）
①immorality
To fully appreciate the irresponsibility and immorality of climate-change denial， you need to know about the grim turn taken by the latest climate research.
要充分理解气候变化否定论中不负责任和不道德的理念，你必须了解最新的气象研究给出的严峻形势。
②wickedness
If you wouldst live long， live well， for folly and wickedness shorten life.
要想活的长，就好好的活着，因为愚蠢和不道德会使人缩短寿命。
③disadvantage
The country has the advantage of peace and quiet， but suffers from the disadvantage of being cut off the city breeds neurosis and a feeling of isolation—constant noise batters the senses.
这个国家有和平宁静的优点，但也有与世隔绝的缺点城市滋生了神经衰弱症和孤立感——连续的噪音冲击着人们的感官。