na-adjective, noun
diminutive; dwarfish; undersized
Describes physical smallness, often with a negative or derogatory nuance. Used for people, animals, or things that are notably smaller than normal.
彼は矮小な体格だが、力は強い。
He has a diminutive build, but he is strong.
その犬は矮小で、まるで子犬のようだ。
That dog is dwarfish, just like a puppy.
na-adjective, noun
Metaphorical extension: describes thinking, views, or attitudes that are petty, narrow, or lacking in breadth. Often used in critical contexts.
彼の矮小な考え方にはうんざりする。
I'm fed up with his narrow-minded way of thinking.
矮小な了見で物事を判断してはいけない。
You shouldn't judge things with a small-minded outlook.