On-going is a commonly used term to describe activities or processes that are continuing at present. However, to avoid repetition or monotony, it is beneficial to use synonyms for the word on-going. Some of the synonyms that can be used to replace on-going are continuous, ongoing, uninterrupted, persisting, unbroken, and enduring. These synonyms convey the same idea as on-going, i.e., something that is happening or progressing without break or interruption. Using these synonyms can help to make language more diverse and expressive, and can also broaden the writer's vocabulary.