The term "were consequence" suggests that there was a result or outcome of something that happened in the past. Antonyms for this term would include words that suggest no result, no outcome, or no impact. Words such as inconsequential, unimportant, irrelevant, and insignificant come to mind. Other antonyms may include words that suggest a positive outcome or result, such as beneficial, advantageous, or profitable. Alternatively, antonyms may suggest a negative outcome, such as detrimental, harmful, or damaging. Depending on the context in which "were consequence" is being used, there may be numerous antonyms to choose from.