The term 'Spiteful Feeling' can be summed up with the crossword solution 'VENOM' (5 letters). VENOM is a strong emotion of hatred, malice, and ill-will that is often directed towards another person. It is an intense feeling of resentment and animosity that can be caused by a variety of factors, such as jealousy, envy, or a sense of injustice. It is a powerful emotion that can lead to destructive behavior and can have a lasting impact on relationships.