滞納・怠納|たいのうtainou[0]heiban (flat)

JLPT N1approx.Common
Which spelling to use
滞納滞納 is the most common written form for this meaning and the one beginners should use when writing about falling behind with a payment.
怠納怠納 is a rarely used kanji-only variant; learners will seldom encounter it and should generally recognize it rather than choose it for writing.
Definitions
  1. noun, suru verb, transitive verbfalling behind (with a payment); being in arrears; non-payment; default; delinquency
    数すう日じつならまだしも10日にちも滞納たいのうしている。↗
    A few days would have been excusable, but you are in arrears for 10 days.
Conjugation
Dictionary form滞納する(たいのうする)
Polite (masu)滞納します(たいのうします)
Negative (nai)滞納しない(たいのうしない)
polite (masen)滞納しません(たいのうしません)
classical zu / nu滞納せず・滞納せぬ(たいのうせず・たいのうせぬ)
Past (ta)滞納した(たいのうした)
polite (mashita)滞納しました(たいのうしました)
Past negative (nakatta)滞納しなかった(たいのうしなかった)
polite (masen deshita)滞納しませんでした(たいのうしませんでした)
Te form滞納して(たいのうして)
Potential滞納できる(たいのうできる)
Passive滞納される(たいのうされる)
Causative滞納させる(たいのうさせる)
Causative passive滞納させられる(たいのうさせられる)
Conditional (ba)滞納すれば(たいのうすれば)
tara滞納したら(たいのうしたら)
Volitional滞納しよう(たいのうしよう)
polite (mashou)滞納しましょう(たいのうしましょう)
Imperative滞納しろ(たいのうしろ)

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

Synonyms & antonyms
  • Synonym不払いふばらいNeutralA noun for not paying at all, as in 「代金の不払い」; it stresses refusal or failure to pay, while 「滞納」 stresses falling behind on taxes or rent.
  • Synonym未納みのうNeutralA noun for what has not yet been paid, as in 「会費が未納」; it need not be overdue and sounds more neutral than 「滞納」.
  • Synonym未払いみはらいNeutralA noun for something left unpaid, as in 「未払い残業代」; used mostly for wages and payments for goods.
  • Antonym完納かんのうNeutralPaying everything owed in full, as in 「税金を完納する」; the opposite of 「滞納」.
  • Antonym即納そくのうNeutralPaying or delivering immediately, as in 「即納可能」; the opposite of the delay implied by 「滞納」.

Use 「滞納」 for falling behind on taxes, rent, or fees, as in 「家賃を滞納する」 and 「税金の滞納」. For simply not having paid, say 「未納」; for unpaid wages or payments for goods, say 「未払い」. The opposite is 「完納」.

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

Japanese definitions
  1. 納付のうふの義務ぎむがあるものが定さだめられた期限きげんまでに納付のうふしないこと。怠納たいのう。
Kanji in this word
English equivalents
See also

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

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