とことん

と

こ

と

ん

Freq.FrequencyTop 10,000

Meanings

the very end; the finish

Used as a noun to refer to the absolute end or limit of something, often in set phrases like とことんまで.

Adverbial use meaning doing something exhaustively, without giving up, or to the fullest extent.

とことん〈動どう詞し〉to do something thoroughly, without holding back
二人ふたりはとことん話はなし合あった。
The two of them talked things through thoroughly.
とことんまで〈動どう詞し〉to do something all the way to the very end
彼かれはとことんまで諦あきらめなかった。
He never gave up, all the way to the end.
〈人ひと〉にとことん付つき合あうto stick with someone through everything, no matter how long it takes
友とも達だちの相そう談だんにとことん付つき合あった。
I stuck with my friend's problem all the way through.

徹てっ底てい的てきN1sense 2
とことん is colloquial and emphasizes stubborn persistence or going all the way, while 徹底的 is a formal na-adjective meaning 'thorough' or 'exhaustive'.
思おもいっきりN2sense 2
思いっきり means doing something with full force in one burst, whereas とことん stresses continuing without giving up until the very end.
存ぞん分ぶんに sense 2
存分に means doing something as much as one likes or is satisfied with, while とことん implies pushing on to an absolute limit even against difficulty.
あくまでも
とことん is a colloquial word for doing something thoroughly or to the extreme, while あくまでも stresses a persistent, unwavering stance and sounds a bit more formal.
あくまでN2
とことん is a colloquial way to say 'thoroughly, all the way' (as in とことんやる), while あくまで can add a stubborn or insistent nuance.

A mimetic word of uncertain origin, possibly related to the reduplicated sound-symbolic pattern とんとん or ことん, but the exact derivation is unclear.