adjective

in an acutely disturbed state of mind characterized by restlessness, illusions, and incoherence; affected by delirium.

he became delirious and couldn’t recognize people

incoherent,raving,babbling,irrational,hysterical,wild,feverish,frenzied,deranged,demented,unhinged,mad,insane,crazed,out of one’s mind,swivel-eyed