一筋・一条・ひと筋・一すじ・ひと条|ひとすじhitosuji[2]nakadaka (mid-high)

JLPT N1approx.Common
Which spelling to use
一筋一筋 is the most common written form and the recommended choice for beginners. It is written entirely in kanji.
一条一条 is less common than 一筋 and is written entirely in kanji. It is an alternative written form for the same entry.
ひと筋ひと筋 is less common than 一条 and combines kanji with kana. It is an alternative spelling of the same entry.
一すじ一すじ is less common than ひと筋 and combines kanji with kana. It is an alternative spelling of the same entry.
ひと条ひと条 is the least common of these forms and combines kana with kanji. It is an alternative spelling of the same entry.
Definitions
  1. nounone line; one stretch (e.g. of road); one strand (e.g. of hair); one beam (e.g. of light); one ray; one length (e.g. of rope)
    涙なみだが一筋ひとすじ頬ほおを流ながれた。↗
    A tear ran down her cheek.
  2. na-adjective, noun (suffix)earnest; resolute; intent; devoted; single-minded
  3. nounone bloodline; one clan
  4. na-adjectiveordinary; common
Conjugation
Plain form一筋(ひとすじ)
Polite (desu)一筋です(ひとすじです)
Negative (dewa nai)一筋ではない(ひとすじではない)
polite (dewa arimasen)一筋ではありません(ひとすじではありません)
Past (datta)一筋だった(ひとすじだった)
Past negative (dewa nakatta)一筋ではなかった(ひとすじではなかった)
Te form (de)一筋で(ひとすじで)
Adverbial (ni)一筋に(ひとすじに)
Conditional (nara)一筋なら(ひとすじなら)

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

Synonyms & antonyms
  • SynonymひたすらNeutralAn adverb for doing nothing but one thing, as in 「ひたすら謝る」; 「一筋」 works as a noun or suffix, as in 「仕事一筋」.
  • Synonym一途いちずNeutralSingle-minded devotion, often with a headstrong, obstinate nuance; 「一筋」 is more neutral.
  • Related真面目まじめNeutralMeans serious and proper, with a broad range of uses; 「一筋」 stresses staying devoted to one thing throughout.
  • Related本気ほんきNeutralRefers to getting serious and meaning it, as in 「本気を出す」; 「一筋」 stresses long-term single-mindedness.
  • Related真摯しんしWrittenWritten/formal word for a sincere, earnest attitude; 「一筋」 stresses long-term single-mindedness.
  • Related真剣しんけんNeutralRefers to taking something seriously, as in 「真剣に考える」; 「一筋」 stresses long-term single-mindedness.
  • Related一途いちずNeutralSingle-minded devotion, often with a headstrong, obstinate nuance; 「一筋」 is more neutral.
  • RelatedシリアスNeutralLoanword meaning grave or serious; 「一筋」 stresses single-minded devotion.
  • Related熱心ねっしんNeutralMeans enthusiastic and hard-working; 「一筋」 stresses long-term devotion to one thing.
  • Related一生懸命いっしょうけんめいNeutralMeans doing your utmost, sparing no effort; 「一筋」 stresses long-term single-mindedness.
  • Related懸命けんめいNeutralMeans straining with all one's effort, as in 「懸命な努力」; 「一筋」 stresses long-term single-mindedness.
  • RelatedひたむきNeutralDescribes throwing yourself wholeheartedly into something; 「一筋」 stresses doing only one thing.
  • Related生真面目きまじめNeutralMeans overly serious and inflexible; 「一筋」 stresses single-minded devotion.
  • Related摯実しじつWrittenWritten/formal and rare; means sincere and honest. In everyday speech 「真摯」 is used instead.
  • RelatedひたぶるWrittenWritten, old-fashioned word for single-minded persistence; rare today — say 「ひたすら」 instead.
  • Related熱誠ねっせいWrittenWritten/formal word for heartfelt, earnest commitment; stresses an earnest attitude, while 「一筋」 stresses lasting devotion to one thing.

Use 「一筋」 for wholehearted devotion to one thing, as in 「仕事一筋」; it also means a single thin line or strand, as in 「一筋の光」. For single-minded devotion with a headstrong edge use 「一途」; for going all out use 「ひたむき」 or 「一生懸命」.

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

Japanese definitions
  1. 細長ほそながいもの。一いち本ぽん。ひとすじ。
  2. ひとくだり。
Kanji in this word
English equivalents

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

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