Translation guide
The English word "profound" covers deep intellectual insight, intense emotions, significant impact, and extreme states. Japanese uses different words for each nuance. Direct translation often fails.
Describing ideas, thoughts, or insights that are deep, wise, or showing great understanding.
a profound thinker · profound wisdom · a profound question
The most common and versatile word for 'deep' in abstract senses. Works for thoughts, meaning, understanding, etc.
彼の話はとても深い。
His story is very profound.
この本から深い洞察を得た。
I gained profound insights from this book.
More formal and literary, emphasizing profound and unfathomable depth. Often used for philosophy or abstract concepts.
Literally 'deep inside', implies complexity and layers of meaning. Often used for art, culture, or nuanced topics.
Expressing a strong, heartfelt feeling such as sadness, gratitude, or love.
profound sorrow · profound love · profound relief
Again, 深い is the go-to word for deep emotions. Pairs naturally with 悲しみ (sadness), 感謝 (gratitude), 愛情 (love), etc.
深い悲しみに包まれた。
I was enveloped in profound sadness.
深い感謝の気持ちでいっぱいです。
I am filled with profound gratitude.
Very formal, used almost exclusively in set phrases like 深甚なる感謝 (profound gratitude) in speeches or formal letters.
Describing an effect, influence, or change that is very great and far-reaching.
a profound effect · profound implications · profound changes
The most natural way to say 'profound' in the sense of 'big' or 'significant'. 深い is less common here.
その発見は科学に大きな影響を与えた。
The discovery had a profound impact on science.
彼の死は私に大きな変化をもたらした。
His death brought about a profound change in me.
Used for extremely large-scale impact, often negative (damage, influence). Formal and somewhat written.
Means 'serious' or 'grave', often used for profound problems or concerns. Not for positive impact.
Only for negative situations (profound crisis, profound worry). Do not use for positive impact.
Emphasizing that something is very great or complete, like silence, ignorance, or disability.
profound silence · profound ignorance · profound deafness
Works for silence, sleep, etc. For ignorance or disability, other words are better.
深い静けさが辺りを包んだ。
A profound silence enveloped the area.
彼は深い眠りについた。
He fell into a profound sleep.
Means 'complete' or 'utter', good for profound ignorance, nonsense, etc.
彼はまったくの無知だ。
He is profoundly ignorant.
Used for profound disability or medical conditions. Formal/technical.
彼は重度の障害を持っている。
He has a profound disability.
While 深い can mean 'profound', it is not natural for phrases like 'profound impact' or 'profound change'. Use 大きな or other specific words instead.
深い影響
profound influence (unnatural in most contexts)
深い is the everyday word for deep/profound. 深遠 is formal and philosophical. 奥深い implies complexity and hidden depth, often positive.
それは本当に深い経験だった。
That was a truly profound experience.
その本は私に大きな影響を与えた。
The book had a profound influence on me.
彼の思想は深遠だ。
His philosophy is profound.
日本の文化は奥深い。
Japanese culture is profound.
I express my profound gratitude.
地震は甚大な被害をもたらした。
The earthquake caused profound damage.
これは深刻な問題だ。
This is a profound problem.