深まる|ふかまるfukamaru[3]nakadaka (mid-high)

JLPT N2approx.Common
Definitions
  1. godan verb, intransitive verbto deepen; to heighten; to intensify
    夕闇ゆうやみが次第しだいに深ふかまっていった。↗
    The twilight merged into darkness.
Conjugation
Dictionary form深まる(ふかまる)
Polite (masu)深まります(ふかまります)
Negative (nai)深まらない(ふかまらない)
polite (masen)深まりません(ふかまりません)
classical zu / nu深まらず・深まらぬ(ふかまらず・ふかまらぬ)
Past (ta)深まった(ふかまった)
polite (mashita)深まりました(ふかまりました)
Past negative (nakatta)深まらなかった(ふかまらなかった)
polite (masen deshita)深まりませんでした(ふかまりませんでした)
Te form深まって(ふかまって)
Potential深まれる(ふかまれる)
Passive深まられる(ふかまられる)
Causative深まらせる(ふかまらせる)
Causative passive深まらせられる・深まらされる(ふかまらせられる・ふかまらされる)
Conditional (ba)深まれば(ふかまれば)
tara深まったら(ふかまったら)
Volitional深まろう(ふかまろう)
polite (mashou)深まりましょう(ふかまりましょう)
Imperative深まれ(ふかまれ)

Common forms generated by rule; see the senses for honorific or irregular usage.

Transitive / intransitive pair
intransitive深まるふかまる⇄transitive深めるふかめる
秋あきが深ふかまる
深まる expresses a state or condition becoming deeper by itself (秋が深まる), while 深める indicates that someone or something actively deepens another thing (理解を深める).

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

Synonyms & antonyms
  • Related強まるつよまるNeutralUsed when force or wind strength increases; 「深まる」 is about a degree becoming deeper.
  • Related深化しんかWrittenA noun for deepening, on the formal side, as in 「関係の深化」.
  • Related高じるこうじるNeutralFor feelings, interest, or illness growing more intense or developing, as in 「趣味が高じて仕事になる」; 「深まる」 centers on understanding and feelings deepening.
  • Related高ずるこうずるWrittenThe 「ずる」-form counterpart of 「高じる」; written/formal prose for intensity rising or a situation developing.
  • Antonym薄らぐうすらぐNeutralMeans fading or weakening — the reverse of the deepening that 「深まる」 describes.
  • Antonym浅まるNeutralMeans becoming shallow; used less often, and the opposite change is usually put as 「浅くなる」.

Use 「深まる」 for deepening of understanding, feelings, or the season, as in 「秋が深まる」. Use 「深化」 for the noun, 「強まる」 when force or wind gains strength, 「高じる」 when intensity develops further, and 「薄らぐ」 for fading.

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

Japanese definitions
  1. 深ふかくなる。程度ていどなどが大おおきくなる。
Kanji in this word

JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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