Crazy vs. Senile — What's the Difference?

Mad, especially as manifested in wild or aggressive behaviour

Relating to or having diminished cognitive function, as when memory is impaired, because of old age.

Extremely enthusiastic

Being a disease or condition whose cause is primarily advanced age

(of an angle) appearing absurdly out of place or unlikely

(Geology) At the end of an erosion cycle

Extremely

Of, or relating to old age.

A mad person

Exhibiting the deterioration in mind and body often accompanying old age; doddering.

Mentally deranged.

A person who is senile.

(Informal) Odd or eccentric in behavior.

Of or pertaining to old age; proceeding from, or characteristic of, old age; affected with the infirmities of old age; as, senile weakness.

Possessed by enthusiasm or excitement

Mentally or physically infirm with age;

Immoderately fond; infatuated

Intensely involved or preoccupied

Foolish or impractical; senseless

Intensely annoyed or irritated

Disorderly or askew

(Informal) Extremely; very

One who is or appears to be mentally deranged

Of unsound mind; insane; demented.

Out of control.

Very excited or enthusiastic.

In love; experiencing romantic feelings.

(informal) Very unexpected; wildly surprising.

(obsolete) Flawed or damaged; unsound, liable to break apart; ramshackle.

(obsolete) Sickly, frail; diseased.

(slang) Very, extremely.

An insane or eccentric person; a crackpot.

Eccentric behaviour; lunacy; craziness.

Characterized by weakness or feebleness; decrepit; broken; falling to decay; shaky; unsafe.

Broken, weakened, or dissordered in intellect; shattered; demented; deranged.

Inordinately desirous; foolishly eager.

Someone deranged and possibly dangerous

Affected with madness or insanity;

Foolish; totally unsound;

Marked by foolish or unreasoning fondness;

Possessed by inordinate excitement;

Bizarre or fantastic;

Intensely enthusiastic about or preoccupied with;