N3 — outside your level filter

しかも

しかもshikamoN3neutral

and what's more — an addition the speaker rates as going beyond expectation

この店みせ、安やすいんだよ。しかも、量りょうもすごく多おおいんだ。

kono mise, yasui n da yo. shikamo, ryou mo sugoku ooi n da.

This place is cheap, you know. And what's more, the portions are huge. casual

彼かれは約束やくそくの時間じかんに一時間いちじかんも遅おくれてきた。しかも、謝あやまりもしなかった。

kare wa yakusoku no jikan ni ichijikan mo okurete kita. shikamo, ayamari mo shinakatta.

He turned up a full hour late. And on top of that, he didn't even apologise. neutral

All examples3

and what's more — a further fact, beyond what you'd expect

  1. この店みせ、安やすいんだよ。しかも、量りょうもすごく多おおいんだ。

    kono mise, yasui n da yo. shikamo, ryou mo sugoku ooi n da.

    This place is cheap, you know. And what's more, the portions are huge. casual

  2. 彼かれは約束やくそくの時間じかんに一時間いちじかんも遅おくれてきた。しかも、謝あやまりもしなかった。

    kare wa yakusoku no jikan ni ichijikan mo okurete kita. shikamo, ayamari mo shinakatta.

    He turned up a full hour late. And on top of that, he didn't even apologise. neutral

  3. 新あたらしい機種きしゅは従来じゅうらいより軽かるくなりました。しかも、価格かかくは据すえ置おきとなっております。

    atarashii kishu wa juurai yori karuku narimashita. shikamo, kakaku wa sueoki to natte orimasu.

    The new model is lighter than its predecessor. And the price, moreover, remains unchanged. formal

How it's formed1