The antonym for the phrase "more widened" is "narrower." Essentially, if something is "widened," it means it has been made broader or more expansive. On the other hand, if something is "narrower," it means the opposite- that it has been made slimmer or more restricted. Both of these terms refer to the dimensions of an object or space, with widened suggesting a larger size, and narrower suggesting a smaller size. In many cases, these words can be used interchangeably with other antonyms such as "thinner" or "more compact." Ultimately, the choice between these words depends on the context, emphasis, and intended meaning of a particular sentence or phrase.