Here are some examples:
* "The once feared king is now a powerless exile." This implies that the king was once powerful and intimidating, but has lost his position and is no longer a threat.
* "The once feared disease has been eradicated." This indicates that a disease that was previously deadly and widespread has been eliminated through medical advancements.
* "The once feared monster under the bed is just a figment of childhood imagination." This refers to a fear that was prevalent in childhood but no longer exists in adulthood.
The phrase "once feared" highlights a contrast between the past and the present, emphasizing that something which was previously a source of fear is no longer so. It often implies a sense of relief, progress, or a shift in understanding.