Lunatic vs. Lunar — What's the Difference?

Lunatic is an antiquated term referring to a person who is seen as mentally ill, dangerous, foolish, or crazy—conditions once attributed to "lunacy". The word derives from lunaticus meaning "of the moon" or "moonstruck".

Of, involving, caused by, or affecting the moon.

A person who is mentally ill (not in technical use).

Measured by the revolution of the moon.

Mentally ill (not in technical use)

Of or relating to silver.

A person who is affected by lunacy; a mentally deranged person.

Of, pertaining to, or resembling the Moon (that is, Luna, the Earth's moon).

A very foolish person.

Shaped like a crescent moon; lunate.

Affected by lunacy; mentally deranged.

Extremely high.

Of or for people who are mentally deranged.

(Believed to be) influenced by the Moon, as in character, growth, or properties.

Wildly or giddily foolish

Of or pertaining to silver (which was symbolically associated with the Moon by alchemists).

An insane person.

(astronomy) Of or pertaining to travel through space between the Earth and the Moon, or exploration and scientific investigation of the Moon.

Crazed, mad, insane, demented.

(anatomy) The middle bone of the proximal series of the carpus in the wrist, which is shaped like a half-moon.

Affected by lunacy; insane; mad; crazy; demented.

An observation of a angle]] between the Moon and another celestial body, especially for establishing the longitude of a ship at sea.

Of or pertaining to, or suitable for, an insane person; evincing lunacy; as, lunatic gibberish; a lunatic asylum.

Of or pertaining to the moon; as, lunar observations.

A person affected by lunacy; an insane person, esp. one who has lucid intervals; a madman; a person of unsound mind.

Resembling the moon; orbed.

An insane person

Measured by the revolutions of the moon; as, a lunar month.

A reckless impetuous irresponsible person

Influenced by the moon, as in growth, character, or properties; as, lunar herbs.

Insane and believed to be affected by the phases of the moon

A lunar distance.

The middle bone of the proximal series of the carpus; - called also semilunar, and intermedium.

Of or relating to or associated with the moon;