The word "inconstancy" is a Noun that means The quality of being changeable or fickle; lack of stability or steadiness.. In Bengali, it is expressed as "অস্থিরতা, চঞ্চলতা, পরিবর্তনশীলতা", which carries the same essential meaning. For example: "His 'inconstancy' made it difficult to rely on him.". Understanding "inconstancy" enhances vocabulary and improves language comprehension for both English and Bengali speakers.