Synonyms of batty in English:


See US English definition of batty

See UK English definition of batty

See Spanish definition of chiflado


1‘she has gone completely batty’

mad, insane, odd, queer, eccentric, deranged, demented, crazed, out of one's mind, not in one's right mind, sick in the head, lunatic, unbalanced, unhinged, unstable
mad as a hatter, mad as a March hare, foaming at the mouth
foolish, stupid, idiotic, silly
informal crazy, mental, daft, bats, bonkers, nuts, nutty, nutty as a fruitcake, loony, screwy, off one's head, off one's nut, off one's rocker, round the bend, out to lunch, raving mad, stark raving mad
British informal barmy, crackers, barking, barking mad, stark staring mad, dotty, potty, off one's trolley, off the wall, not the full shilling, away with the fairies
North American informal nutsy, whacko

sane, rational