noun
1
BAD : When I saw these pity children, my eyes filled with tears.
GOOD : When I saw these pitiful children, my eyes filled with tears.
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pity (noun) = a feeling that you have when you feel sad and sorry for someone because of their situation: 'They don't want out pity. They need our help.'
pitiful (adjective) = causing people to feel sad and sorry: 'The horses were in a pitiful condition, thin and covered with sores.'
2
BAD : She expected me to feel pity on her and help her.
GOOD : She expected me to take pity on her and help her.
GOOD : She expected me to feel pity for her and help her.
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take pity on : 'Eventually a kind motorist took pity on us and offered us a lift.'
feel pity for : 'Being a widow, she expects you to feel pity for her.'