Most gibbering is a phrase that implies extreme agitation, nervousness, or confusion. However, there are numerous synonyms that can be used to describe this state more accurately. Some of the most fitting alternatives include babbling, incoherent, manic, frenzied, raving, and delirious. Similar words that could be used in the context of most gibbering are unhinged, irrational, hysterical, insane, disturbed, or demented. These words reflect an individual who has lost control of their emotions or thoughts and can't communicate coherently. Using more precise language to describe the degree of gibbering can make for richer writing and more comprehensive communication.