1. liable to sudden unpredictable change;

   "erratic behavior"
   "fickle weather"
   "mercurial twists of temperament"
   "a quicksilver character, cool and willful at one moment, utterly fragile the next"
   

2. relating to or under the (astrological) influence of the planet Mercury;

   "the mercurial canals"
   

3. relating to or having characteristics (eloquence, shrewdness, swiftness, thievishness) attributed to the god Mercury;

   "more than mercurial thievishness"
   

4. relating to or containing or caused by mercury;

   "mercurial preparations"
   "mercurial sore mouth"
   

1.善变的;变化无常的;难以预测的
If you describe someone asmercurial, you mean that they frequently change their mind or mood without warning.

e.g. ...hismercurial temperament.
他那反复无常的脾气

1. 幽鬼：g.* 修正了幽鬼(mercurial)在使用鬼影重重(Haunt)时自己不会被吓死的Bug.* 修正了巫妖(Kel'thuzad)没有腿还可以移动的Bug.* 修正了全能骑士(Purist Thunderwrath)的驱逐(Rapel)的目标会魔法免疫的Bug.* 敌法师(Magina)和痛苦女王(Akasha)的闪烁不再可以穿越障碍.* 暗影萨满(Rhasta)和恶魔巫师(Lion)的妖术施法距离改为全

2. mercurial的近义词

2. 墨丘利：Terrorblade:恐惧之刃 |mercurial:墨丘利 | Lesale Deathbringer:里榭尔.亡使

3. 墨丘利,希腊神话：Terrorblade:恐怖利刃,WOW 恐怖利刃战甲 |mercurial:墨丘利,希腊神话 | Lesale Deathbringer:里瑟尔.死亡使者

4. 活泼的：mercilless 残忍的 |mercurial 活泼的 |mercurialism 水银中毒