adverb, noun which may take the genitive case particle 'no', na-adjective
very; greatly; considerably; quite
Emphasizes a high degree or extent, often with a nuance of 'more than usual' or 'to a surprising degree'. Used adverbially or with の/な to modify nouns.
See also: よほど
You seem really tired today.
よっぽどのことがない限り、彼は遅刻しない。
Unless something very unusual happens, he won't be late.
adverb
almost; very nearly; just about to
Indicates that something was close to happening or being the case, often with a sense of 'to a considerable degree' that almost reached a threshold. Used adverbially.
See also: よほど
よっぽど言おうかと思ったけど、やめた。
I almost said it, but I stopped myself.