Forgotten is a term widely used to describe a situation where something or someone has been ignored or not remembered. There are several synonyms for 'forgotten,' including 'neglected,' 'abandoned,' 'overlooked,' 'ignored,' 'disregarded,' and 'unnoticed.' Neglected implies a sense of carelessness, while abandoned suggests someone or something has been left to its own devices. Overlooked indicates an error or omission due to a lack of attention. Ignored means a deliberate disregard or failure to acknowledge. Disregarded refers to something that is intentionally ignored or left unheeded. Lastly, unnoticed implies a lack of observation or attention. All these synonyms for 'forgotten' suggest a situation where something or someone has been left behind.