Omission is an act of leaving something out that was expected to be included. It is often frustrating when crucial information is omitted. Some synonyms for omitted are excluded, forgotten, neglected, overlooked, passed over, excluded, ignored, or left out. Someone may omit because they are forgetful, careless, or wish to avoid mentioning something. It is essential to pay attention to the context of the sentence when using synonyms for omitted. So, whenever you find that some vital information is missing, you can use these synonyms to capture the same meaning of the original word.