lunatic
/ˈɫunəˌtɪk/
mentally ill; wildly foolish or impractical
lunatic in a sentence
“The lunatic scheme was doomed from the start.”
Origin of lunatic
Latin lunaticus (moonstruck); believed caused by lunar phases
Related Words
solstice
the point at which the sun reaches its highest or lowest point; a turning point
equinoctial
relating to an equinox; having equal day and night
heliacal
relating to or near the sun; rising just before sunrise
crepuscular
relating to twilight; dim or resembling twilight
lunar
relating to the moon; influenced by or resembling the moon
solar
relating to or determined by the sun