mercurial
1. [ adjective ] liable to sudden unpredictable change
Synonyms: erratic quicksilver fickle
Examples:

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

Related terms: changeable
2. [ adjective ] relating to or under the (astrological) influence of the planet Mercury
Examples:

"the Mercurial canals"

Related terms: Mercury
3. [ adjective ] relating to or having characteristics (eloquence, shrewdness, swiftness, thievishness) attributed to the god Mercury
Examples:

"more than Mercurial thievishness"

Related terms: Mercury
4. [ adjective ] relating to or containing or caused by mercury
Examples:

"mercurial preparations" "mercurial sore mouth"

Related terms: mercury
Similar spelling:   Mercurialis
  Mercuri
  Mercurio
  mercuric
  mercouri
  Mercury
  Mercure
  mercury_cell
  mercurous
  mercer
  Mercier