uptight

[ uhp-tahyt ]
/ ˈʌpˈtaɪt /

adjective Slang.

tense, nervous, or jittery.
annoyed or angry.
stiffly conventional in manner or attitudes.

Origin of uptight

1960–65, Americanism; up (perhaps as intensifier) + tight
Related formsup·tight·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for uptight

uptight

/ (ʌpˈtaɪt) /

adjective informal

displaying tense repressed nervousness, irritability, or anger
unable to give expression to one's feelings, personality, etc

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012