An exclamatory phrase expressing surprise or admiration: 'what a ...' (e.g., 'What a beautiful view!').
なんという美しい景色だ。
What a beautiful view!
なんという失礼な言い方だろう。
What an impolite way to put it.
彼の演奏はなんという才能の現れだ。
What a display of talent his performance is.
Indicates that there's nothing worth mentioning; used especially with a negative verb (e.g., 'it's nothing special').
大事には至らず、何ということもなく済んだ。
It didn't become serious; it was nothing to worry about.
彼女の反応は淡泊で、何ということもない日常を送っているようだった。
Her reaction was calm; she seemed to be living a life with nothing special.
Used to ask for the name of something or someone: 'what is it called...' or 'what is your name...'.
この花は何という名前ですか？
What is the name of this flower?
あなたの好きな小説は何という作品ですか？
What is the novel you like called?