• not keeping or showing an even balance; not evenly distributed

• displaying symptoms of emotional disturbance or mental illness

Synonyms: unstable, of unsound mind, deranged, demented, crazy, crazed, troubled, disturbed, unhinged, mad, raving mad, out of one's mind, not in one's right mind, psychotic

• make (someone or something) unsteady so that they tip or fall

Synonyms: unstable, rocky, wobbly, wobbling, rickety, shaky, shaking, tottery, tottering, teetering, unsafe, unbalanced, unreliable, insecure, not secure, unfastened, unsecured, movable, precarious

• upset or disturb the equilibrium of (a situation or person's state of mind)

Synonyms: unstable, of unsound mind, deranged, demented, crazy, crazed, troubled, disturbed, unhinged, mad, raving mad, out of one's mind, not in one's right mind, psychotic