Singled-out is often associated with being chosen or selected from a group, but what about the opposite? Antonyms for singled-out can include ignored, disregarded, overlooked, or excluded. These words imply a lack of recognition or attention and can be used to describe feelings of frustration or disappointment. Other antonyms might include ordinary, average, or unremarkable, indicating a lack of distinction or unique qualities. Ultimately, the opposite of singled-out depends on the context in which it is used, but it often carries a negative connotation and can be used to describe a lack of recognition or appreciation.