UPSC CDS 1 2020 English Paper

The most appropriate antonym for the given word is ‘Malevolent’
Malevolent means having or showing a wish to do evil to others.
Meaning of the given words are:
Lenient means more merciful or tolerant than expected.
Unforeseen means not anticipated or predicted.
Gracious means courteous, kind, and pleasant, especially towards someone of lower social status.