Select the most appropriate option to fill in the blank as synonym for the underlined word.

The bitterness he has harboured is not good. This __________ will harm him.

rancour

The most appropriate option to fill in the blank as synonym for the underlined word is rancour.

• Storm means "a violent disturbance of the atmosphere with strong winds and rain, thunder, and lightning." This is not a synonym of bitterness, as bitterness is a feeling of anger or resentment.
• Hangar means "a large building for housing aircraft." This is not a synonym of bitterness, as bitterness is a feeling, not a physical structure.
• Danger means "the possibility of something bad happening." This is not a synonym of bitterness, as bitterness is not necessarily a dangerous thing.
• Rancour means "a deep-seated feeling of ill will or resentment." This is a synonym of bitterness, as they both refer to feelings of anger or resentment.