Adjective

(-)

Of or relating to the mind or an intellectual process.

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*:“I don't mean all of your friends—only a small proportion—which, however, connects your circle with that deadly, idle, brainless bunch—the insolent chatterers at the opera,, the neurotic victims of mental cirrhosis, the jewelled animals whose moral code is the code of the barnyard—!"

*{{quote-magazine, date=2013-07-19, author= Ian Sample

, volume=189, issue=6, page=34, magazine=(The Guardian Weekly) , title= Irregular bedtimes may affect children's brains , passage=Irregular bedtimes may disrupt healthy brain development in young children, according to a study of intelligence and sleeping habits.  ¶ Going to bed at a different time each night affected girls more than boys, but both fared worse on mental tasks than children who had a set bedtime, researchers found.}}

Insane, mad, crazy.

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Enjoyable; fun.

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(lb) Of or relating to the chin or median part of the lower jaw, genial.

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(lb) Of or relating to the chin-like or lip-like structure.

Adjective

(en adjective)

(biology) having the power to move spontaneously

* {{quote-book

, date = 1993-05-06 , title = A Dead Man in Deptford , first = Anthony , last = Burgess , authorlink = Anthony Burgess , location = London , publisher = Hutchinson , isbn = 9780091779771 , ol = 1047075M , passage = It seemed to him that, if there were a Holy Trinity as the churches taught, this must be unified through a manner of capillary action, Father merging into Son and both into Holy Ghost. So God is motile as the blood is. }}

* {{quote-video

, date = 2010-01-21 , episode = The Proof in the Pudding , title = , season = 5 , number = 12 , at = 1:27 , people = (Emily Deschanel) , role = , passage = And even if they use condoms, Wendell is young. His sperm is likely to be extremely motile . }}

(psychology) of or relating to those mental images that arise from the sensations of bodily movement and position