i-adjective
Describes physical spaces that feel uncomfortably small or constricted.
この部屋はせせこましくて、家具をあまり置けない。
This room is so cramped that I can't put much furniture in it.
i-adjective
Used for a person's character or way of thinking that is petty, overly concerned with small details, or lacking in generosity.
彼はせせこましい性格で、小さなことでもすぐ気にする。
He has a fussy personality and worries about even the smallest things.