up·tight 
/ˈʌpˈtaɪt/ adjective
/ˈʌpˈtaɪt/ adjective [more uptight; most uptight] 1 : nervous or worried and tending to become upset about something that does not make other people upset
▪ If our flight is delayed, there's nothing we can do. There's no reason to get so uptight about it. 2 : unable or unwilling to relax and express feelings openly : too concerned about behaving in a socially proper way
▪ I don't know why people are so uptight about sex. ▪ uptight conservatives
▪ If our flight is delayed, there's nothing we can do. There's no reason to get so uptight about it.
▪ I don't know why people are so uptight about sex. ▪ uptight conservatives
