“Whispered antonyms” refers to words that are opposite in meaning to “whispered”.
One antonym could be “shouted”. When someone shouts, they are making a loud noise, which is the complete opposite of whispering. For example, “He shouted his answer across the room instead of whispering it.”
Another antonym might be “bellowed”. Bellowing implies a very loud and deep sound, much louder than a whisper. For instance, “The angry man bellowed his complaints.”
“yelled” is also an antonym. Yelling is a loud and forceful way of speaking, in stark contrast to whispering. “She yelled at him to stop, not whispering a request.”
In conclusion, words like shouted, bellowed, and yelled are antonyms of “whispered” as they represent loud and forceful ways of communicating, while whispering is soft and quiet.