tight
Describes clothing that fits very closely to the body.
Diese Jeans ist mir ein bisschen zu tight, ich brauche eine Nummer größer.
These jeans are a bit too tight for me; I need one size larger.

tight / cool
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Describes clothing that fits very closely to the body.
Diese Jeans ist mir ein bisschen zu tight, ich brauche eine Nummer größer.
These jeans are a bit too tight for me; I need one size larger.

'Tight' is a word from English that is used in German colloquial language. It is usually used only in certain contexts such as fashion, youth slang, or music.
Dein neues T-Shirt sitzt echt tight.
Your new T-shirt fits really tight.
As an adjective, 'tight' is usually used predicatively (after a verb like 'sein' (to be) or 'sitzen' (to fit)) or as an adverb. An inflected form before a noun is less common, but possible.
Die Hose ist mir zu tight.
The pants are too tight for me.
You can easily recognize the meaning of 'tight' from the context. In connection with clothing, it means 'eng' (tight). In youth slang, it is a positive word like 'cool'. In a musical context, it describes precise interplay.
Wow, das neue Album ist richtig tight!
Wow, the new album is really cool!
In the meaning 'cool' or 'great', 'tight' clearly belongs to youth slang. In formal or professional situations, you should avoid this word because it is very informal.
Das Konzert war mega tight, die Stimmung war super.
The concert was super cool; the atmosphere was great.
far / wide
'weit' and 'tight' can be opposites when talking about clothing. 'weit' means that clothing fits loosely and does not sit close to the body. 'tight' is an English word that appears in German mainly in colloquial language and means 'very close-fitting' for clothing. In normal everyday situations, people often simply say 'eng' in German. 'Tight' sounds more modern or youthful. In clear standard language, 'weit' is the opposite of 'eng' or 'anliegend', while 'tight' feels more casual and colloquial.

Im Laden fand Lena die Jeans schön, aber viel zu tight.
In the store, Lena thought the jeans were nice, but much too tight.
Diese Jacke ist mir zu weit, deshalb nehme ich eine kleinere Größe.
This jacket is too loose for me, so I'll take a smaller size.