Tekkiri
JLPT N1てっきり (Tekkiri) is a Japanese adverb meaning “surely, certainly, without doubt”.
Meanings
- adverbsurely; certainly; without doubtused of beliefs that turned out to be false
Examples
てっきりあなたが我々といっしょに来られるものと思っていました。
I took it for granted that you would come with us.
Sentences from Tatoeba (CC BY 2.0 FR).