Need another word that means the same as “mercurial”? Find 28 synonyms and 30 related words for “mercurial” in this overview.
The synonyms of “Mercurial” are: erratic, fickle, quicksilver, volatile, capricious, temperamental, excitable, changeable, unpredictable, variable, protean, mutable, inconstant, inconsistent, unstable, unsteady, fluctuating, ever-changing, kaleidoscopic, fluid, wavering, vacillating, moody, flighty, wayward, whimsical, giddy, impulsive
According to the Oxford Dictionary of English, “mercurial” as an adjective can have the following definitions:
| capricious | Changeable. A capricious and often brutal administration. |
| changeable | Able to be changed or exchanged. Changeable moods. |
| erratic | Not even or regular in pattern or movement; unpredictable. Erratic behavior. |
| ever-changing | Marked by continuous change or effective action. |
| excitable | Easily excited. These alkaloids act on nerve cells to make them more excitable. |
| fickle | Liable to sudden unpredictable change. Fickle friends. |
| flighty | Unpredictably excitable (especially of horses. Flighty young girls. |
| fluctuating | Having unpredictable ups and downs. A fluctuating level of demand. |
| fluid | Characteristic of a fluid capable of flowing and easily changing shape. The fluid political situation of the 1930s. |
| giddy | Excitable and frivolous. Luke felt almost giddy with relief. |
| impulsive | Acting or done without forethought. He regretted his impulsive offer. |
| inconsistent | Not in agreement. Parents can become inconsistent and lacking in control over their children. |
| inconstant | Frequently changing; variable or irregular. Swear not by the inconstant moon. |
| kaleidoscopic | Having complex patterns of colours; multicoloured. Kaleidoscopic diamond patterns. |
| moody | Showing a brooding ill humor- Bruce Bli. Grainy film which gives a soft moody effect. |
| mutable | Tending to undergo genetic mutuation. A mutable substance. |
| protean | Taking on different forms. It is difficult to comprehend the whole of this protean subject. |
| quicksilver | Liable to sudden unpredictable change. A quicksilver character cool and willful at one moment utterly fragile the next. |
| temperamental | Relating to a person’s temperament. A temperamental film star. |
| unpredictable | Not able to be predicted; changeable. An unpredictable or indeterminable future. |
| unstable | Suffering from severe mental illness. Sensitive and highly unstable compounds. |
| unsteady | Subject to change or variation. His hand was unsteady as he poured the wine. |
| vacillating | Uncertain in purpose or action. He was accused of vacillating leadership. |
| variable | (of a quantity) able to assume different numerical values. Rainfall in the tropics is notoriously variable. |
| volatile | (of a person) liable to display rapid changes of emotion. Volatile oils. |
| wavering | Moving in a quivering way; flickering. The move brought back wavering voters. |
| wayward | Resistant to guidance or discipline. Wayward behavior. |
| whimsical | Determined by chance or impulse or whim rather than by necessity or reason. The whimsical arbitrariness of autocracy. |
| anomalous | Deviating from the general or common order or type. An anomalous situation. |
| arbitrarily | On the basis of random choice or personal whim, rather than any reason or system. Recurrent infection is arbitrarily defined as three or more infections a year. |
| arrhythmic | Not rhythmic; without rhythm or regularity. An arrhythmic heartbeat. |
| capricious | Changeable. A capricious summer breeze. |
| cataclysmic | Causing sudden and violent upheaval. Cataclysmic nuclear war. |
| changeable | Varying in color when seen in different lights or from different angles. Cover the tables with changeable cloths. |
| changing | Marked by continuous change or effective action. |
| cheating | Not faithful to a spouse or lover. |
| defuse | Remove the fuse from (an explosive device) in order to prevent it from exploding. Explosives specialists tried to defuse the grenade. |
| displacement | The volume swept by a reciprocating system, as in a pump or engine. The submarine has a surface displacement of 2 185 tons. |
| drachma | Formerly the basic unit of money in Greece. |
| equivocally | In an ambiguous manner. |
| erratic | A rock or boulder that differs from the surrounding rock and is believed to have been brought from a distance by glacial action. An erratic comet. |
| fickle | Liable to sudden unpredictable change. Celebs trying to appeal to an increasingly fickle public. |
| fungible | Of goods or commodities; freely exchangeable for or replaceable by another of like nature or kind in the satisfaction of an obligation. It is by no means the world s only fungible commodity. |
| haphazardly | Without care; in a slapdash manner. The film feels haphazardly thrown together. |
| impulse | A change of momentum produced by an impulse equivalent to the average value of the force multiplied by the time during which it acts. Electrical impulses. |
| impulsive | Having the power of driving or impelling. The approaching waves contain an impulsive component. |
| inconstant | (of a person or their behaviour) not faithful and dependable. Inconstant affections. |
| mutable | Prone to frequent change; inconstant. Mutable weather patterns. |
| platinum | Greyish white or silvery like platinum. A platinum wig. |
| quicksilver | A heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures. His quicksilver wit. |
| random | Governed by or involving equal chances for each item. I just sat down by myself and talked to some randoms. |
| shifting | The act of moving from one place to another. Diverse districts with shifting demographics. |
| uncertain | (of a person) not completely confident or sure of something. The issue is uncertain. |
| unfaithful | Not trustworthy. Her unfaithful husband. |
| unpredictable | Unknown in advance. The unpredictable weather of the Scottish islands. |
| unstable | Highly or violently reactive. Sensitive and highly unstable compounds. |
| variable | The region of light variable winds to the north of the north east trade winds or in the southern hemisphere between the south east trade winds and the westerlies. Nature is infinitely variable. |
| volatile | A volatile substance. A flirt s volatile affections. |
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