The word "invious" refers to feelings of envy or jealousy towards someone. There are several synonyms for this word, including envious, jealous, covetous, and green-eyed. Envious refers to feeling a strong desire for something that someone else possesses. Jealous highlights the fear of losing something to a rival. Covetous suggests a strong desire to possess what someone else has. The term "green-eyed" refers to envy that is visibly apparent in someone's eyes. Each of these words conveys a sense of bitterness or resentment towards someone who has something that is desired by the individual. It is essential to control invious feelings to avoid negative emotions and harmful situations.