よっぽど， 余っ程
1. very, greatly, much, considerably, to a large extent, quite
2. just about to, almost, very nearly
tbd
喜色満面の笑みを浮かべているけど、彼、よっぽど嬉しいことがあったんだろうな。
tbd
You could tell by the ear-to-ear grin that came to his face that he really had something to smile about.
[More...]
よっぽど印象に残る事じゃないと覚えてないんだよね。
tbd
Unless it's something fairly impressive, I won't remember it.
[More...]
あいつがガッツポーズするなんて、よっぽど嬉しかったんだろうな。
tbd
It must have been something really big for him to strike a triumphant pose like that.
[More...]