Mercurial(adjective)
Subject to sudden or unpredictable changes of mood or mind.
Hindi meaning:चंचल / अस्थिर स्वभाव वाला
Synonyms: Fickle, Unstable, Volatile, Capricious
Antonyms: Stable, Steady, Consistent, Predictable
Example: His mercurial temperament makes it difficult to know how he will react.
Trick to remember: Mercury jaise tezi se badalne wala insaan — wahi mercurial hota hai. 
Learn it with 19 more words: Daily Vocabulary – 12 October 2025 →
