U

disturbed

adjective

marked by symptoms of mental illness: a disturbed personality.
agitated or distressed; disrupted: disturbed seas; a disturbed situation.

noun

(used with a plural verb) persons who exhibit symptoms of neurosis or psychosis (usually preceded by the).

verb (used with object)

to interrupt the quiet, rest, peace, or order of; unsettle.
to interfere with; interrupt; hinder: Please do not disturb me when I’m working.
to interfere with the arrangement, order, or harmony of; disarrange: to disturb the papers on her desk.
to perplex; trouble: to be disturbed by strange behavior.

verb (used without object)

to cause disturbance to someone’s sleep, rest, etc.: Do not disturb.

adjective

psychiatry emotionally upset, troubled, or maladjusted

verb (tr)

to intrude on; interrupt
to destroy or interrupt the quietness or peace of
to disarrange; muddle
(often passive) to upset or agitate; troubleI am disturbed at your bad news
to inconvenience; put outdon’t disturb yourself on my account

adj.

past participle adjective from disturb. Meaning “emotionally or mentally unstable” is from 1904.

c.1300, “to stop or hinder,” from Old French destorber (Old North French distourber) and directly from Latin disturbare “throw into disorder,” from dis- “completely” (see dis-) + turbare “to disorder, disturb,” from turba “turmoil” (see turbid).

Meaning “to frighten” is late 13c.; that of “to stir up, agitate” is c.1300. Related: Disturbed; disturbing; disturbingly. Middle English also had distourbler (n.) “one who disturbs or incites” (late 14c.).