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| ugly | 
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| a.  (कुरूप) offensive to the sight; contrary to beauty; disagreeable aspect; unsightly | 
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| ultimate | 
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| a. Syn. final; fundamental; extreme (परम) final; being the last or concluding; fundamental; elemental; extreme | 
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| ultimatum | 
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| n.  (अल्टीमेटम) last offer; final statement of terms made by one party to another | 
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| ultrasonic | 
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| a. Syn. supersonic (अल्ट्रासोनिक) supersonic; higher in frequency than the range of sound perceptible to the human ear | 
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| unbearable | 
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| a. Syn. unendurable; intolerable (असहनीय) unendurable; so unpleasant, distasteful, or painful as to be intolerable | 
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| unbroken | 
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| a. Syn. uninterrupted; intact (अटूट) continuous, without interruption; intact | 
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| uncover | 
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| v. Syn. reveal; expose; disclose (उजागर) remove the cover from; expose; disclose | 
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| underestimate | 
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| v. Syn. undervalue (इनकार) make too low an estimate of the quantity; undervalue | 
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| undergraduate | 
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| n.  (स्नातक) university student who has not yet received a first degree | 
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| underground | 
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| a. Syn. subterranean; buried (भूमिगत) under the level of the ground; buried | 
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| underlying | 
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| a. Syn. fundamental; implicit (अंतर्निहित) lying under or beneath something; basic; implicit; taking precedence; prior | 
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| undermine | 
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| v. Syn. weaken (कमजोर) weaken by wearing away base or foundation; injure or impair; dig a mine or tunnel beneath |