N3 — outside your level filter
and what's more — an addition the speaker rates as going beyond expectation
この店、安いんだよ。しかも、量もすごく多いんだ。
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
彼は約束の時間に一時間も遅れてきた。しかも、謝りもしなかった。
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
しかも
しかもshikamoN3neutral