Select the most appropriate ANTONYM to replace the italicised word in the given sentence.
I am astonished to see her mercurial demeanour in making any task a success.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. invariable.
The word “mercurial” means changeable, unpredictable, or volatile.
Its antonym should mean unchanging or consistent, which is “invariable.”
Option 1 (capricious) and Option 2 (erratic) both mean unpredictable or changeable, similar to mercurial, so they are synonyms, not antonyms.
Option 4 (fluctuant) means varying or changing, again similar to mercurial.