Tight
Cramped, Rigid
noun, な adjective
Don't yield to anything when you're destitute because it'll make things even more tight. Usually you have to be pretty rigid about what you can and cannot afford.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
窮屈な下着は体によくない。
Tight underwear isn’t good for you.
部屋が窮屈でごめんね。ここに座っていてくれる？今、お茶持ってくるから。
I'm sorry the room is so cramped. Can you just sit here? I'll get you some tea.