How to say "entirely" in Japanese

• まったくJLPT N3approx.Common
  adverb, no-adjectiveThe default word for 'entirely' meaning simply 'completely' — entirely wrong, entirely different, entirely unaware. When you only want to strengthen a statement, with no special image attached, this is the one to reach for.
  彼かれの意見いけんは我々われわれの意見いけんとはまったく違ちがっている。↗

  His opinion is quite different from ours.
• すっぽりCommon
  adverb (with と)A mimetic word: 'entirely' describing something fitting or slipping wholly inside something else, so that it is completely enclosed or hidden. Beyond this picture of containment it is not the word for 'entirely'.
  町まちが一面いちめんすっぽり雪ゆきをかぶった。↗

  Snow completely covered the town.
• そっくりJLPT N3approx.Common
  adverbCovers 'entirely' as 'the whole thing, all of it': taking, giving, or keeping something in its entirety with nothing held back. Remember too its separate sense of 'a perfect likeness'.
  計画けいかくはそっくり承認しょうにんされた。↗

  The plan was approved in its entirety.
• ことごとくJLPT N1approx.Common
  adverbCovers 'entirely' as 'one and all, without exception': every attempt, every case, taken together — and typically they have all failed. It sums up outcomes across a whole set, not the wholeness of one thing.
  トムはこれまで手てをつけた仕事しごとはことごとく成功せいこうした。↗

  Tom has always done well in every job he has had.
• もっぱらJLPT N1approx.Common
  adverb, no-adjectiveCovers 'entirely' in the sense 'solely, exclusively': time, energy, or attention devoted wholly to one pursuit and nothing else. For plain 'completely' it is not the word you want.
  その特権とっけんはもっぱらご婦人ふじんだけに限かぎられている。↗

  The privilege is reserved exclusively for women.

Choose 「まったく」 for plain 'completely', 「すっぽり」 for something fitting wholly inside something else, 「そっくり」 for 'the whole thing', 「ことごとく」 for 'one and all, without exception', and 「もっぱら」 for 'solely, exclusively'.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• まったくreally
• すっぽりentirely
• そっくりall
• ことごとくaltogether
• もっぱらwholly
• 皆目かいもくentirely
• 残らずのこらずall
• 一にいつにsolely
• 文句なしもんくなしundisputed
• すっかりall
• ずくめentirely
• ごっそりcompletely
• ひとえにwholly (due to)
• とんとcompletely
• すっぱりcompletely (quitting, etc.)
• けろけろcompletely
• ごそっとcompletely
• けろりcompletely
• けろっとcompletely
• 洗いざらいあらいざらいall
• とっぷりcompletely
• 悉皆しっかいall
• ずぶcompletely
• すぱっとcompletely (quitting, etc.)
• 残さずのこさずall
• かいくれ(not) at all
• 合式がっしきall
• みなまでto the end
• てんで(not) at all
• からっきしquite
• まったくもってas a matter of fact
• すべてentirely
• 全然ぜんぜんwholly
• きれいcompletely
• まるでreally
• およそcompletely
• 丸々まるまるentirely
• おおよそcompletely
• 揃いそろいentirely
• 頭からあたまからentirely
• 根こそぎねこそぎall (destroyed, stolen, etc.)
• すべからくall
• ぞっこんfrom the heart
• もろcompletely
• さっぱりcompletely