Informal:
* "My boss is so uptight about deadlines, it's impossible to relax."
* "After the presentation, I felt uptight and couldn't sleep."
* "Don't be so uptight, it's just a party!"
Formal:
* "The uptight atmosphere in the room made it difficult for anyone to speak freely."
* "The candidate's uptight demeanor during the interview did not make a good impression."
Figurative:
* "The city felt uptight and suffocating compared to the open countryside."
* "His life seemed uptight and controlled, lacking any spontaneity."
Remember that "uptight" is generally considered informal and can have a negative connotation. Use it carefully and choose an alternative if you want a more formal or neutral tone.