Synonym: crazy, deranged, foolish, mad, unbalanced. Antonym: sane. Similar words: insatiable, instantaneous, on sale, sand, sank, compensate, sensation, cane. Meaning: [ɪn'seɪn] 
adj. 1. afflicted with or characteristic of mental derangement 2. very foolish.
adj. 1. afflicted with or characteristic of mental derangement 2. very foolish. 
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91. The letter made her insane with jealousy.
92. While alone and insane , encased in his tomb.
93. He is just a crank. His ideas are insane.
94. You must be insane, you ugly old hag!
95. History will characterise all these transactions as insane.
96. He works in an insane asylum.
97. Harry ! put the gun down, you're acting insane!
98. Antonina eventually died in an insane asylum.
99. Of course, there's also a middle ground between a totally loud, insane, free-for-all, and a completely calm, orderly discussion.
100. Contributors have included a Nobel laureate and an an insane asylum, among thousands of others.
101. Officers unsparing in training their men, to a point which U.S. trainers would probably think insane.
102. He died in an insane asylum at the age of 47.
103. An experimental formula has blown up in his face,(http://sentencedict.com/insane.html) increasing his intelligence and strength but also driving him insane.
104. The accused has been certified ( as ) insane / certified to be insane.
105. Let us consider that we are all insane, it will explain us to each other, it will unriddle many riddles. --- mark twain.
106. Barrister, solicitor, judge, priest, doctor, member of parliament, people who are insane are among the category of people disqualify from being juror.
107. Actuated by an insane high-mindedness, he takes his half-sister to New York, allowing everyone to believe that he has married her as the result of a sudden infatuation.
108. Consider that we are all insane, it will explain us to each other, and unriddle many riddle.
109. But to explain it in plain terms would serve no purpose other than to make me look insane to people who have no correlating inner experience.
110. He's gone a bit daft ( in the head ), ie He has become slightly insane.
111. At the same 3.5-inches as the older screens, the new display manages an insane 326ppi pixel density along with an 800:1 contrast ratio.
112. Maria: You want to be alone in this insane asylum?
113. Drivers go into the turn downhill and to the left before, moments later, turning it around to go uphill and to the right, often at insane velocities.
114. Objective:To analyse the clinical and image features of general paresis of insane (GPI) so as to make an early diagnosis available.
115. The logic was insane, except as a polyrhythm of fear and reassurance, a seduction.
116. What insane root she has been nibbling, I know not.
117. Late one night at the insane asylum one inmate shouted, " I am Napoleon! ".
118. Robert lost his mind and was committed to an insane asylum.
119. Then, presuming we have not gone insane from the over-warm planet, we can decide what to do.
120. How could even the best self - improvement master cure the criminally insane?
More similar words: insatiable, instantaneous, on sale, sand, sank, compensate, sensation, cane, compensation, transaction, unsatisfied, commensalism, compensate for, dispensable, sandwich, sand dune, peasant, bane, lane, dispensation, condensation, sanguine, sandstorm, incessant, pleasant, chitosan, partisan, sanction, inane, panel.