i-adjective
Describes a person who is unwilling to spend money or share resources, often with a negative connotation.
彼はケチくさいから、絶対におごってくれない。
He's so stingy he'd never treat us.
そんなケチくさいこと言わないで、少しは出してよ。
Don't be so cheap—chip in a little.
i-adjective
narrow-minded; petty; mean-spirited
Refers to a small-minded, ungenerous attitude, not just about money but about behavior or thinking.
あの人のケチくさい考え方にはうんざりする。
I'm fed up with his petty way of thinking.
そんなケチくさいことで怒るなよ。
Don't get mad over such a petty thing.
i-adjective
shabby; poor-looking; cheap-looking
Describes the appearance of something that looks cheap, shabby, or of poor quality.
この服、ケチくさいデザインだね。
This outfit has a cheap-looking design, doesn't it?
部屋がケチくさい感じで落ち着かない。
The room feels shabby and I can't relax.