듯 vs 같다: Subtle Differences in Guessing and Comparison

듯 (deus) · 같다 (gat-da, gatda)

'듯' is mainly used to express conjecture or indirect feelings, while '같다' is used to indicate clear similarity or comparison.

Comparison of Korean grammar 듯 and 같다 usage

Word-by-word breakdown

One lane per word — no nested boxes, just the gist.

(deus)

Used to express conjecture or an indirect feeling.

When to use

expressing conjecture, indirect feeling, literary expression

The nuance

Usually attaches to verbs or adjectives to express the speaker's conjecture or feeling.

같다(gat-da, gatda)

Used to indicate clear similarity or comparison.

When to use

expressing comparison, clear similarity, everyday conversation

The nuance

Attaches to nouns, verbs, or adjectives to directly express similarity between two things.

Real-world examples

  • 그는 어제 온 것 같다.

    geu-neun eo-je on geos gat-da., geu neun eo je on geos gat da.

    '같다' is appropriate here to express a clear conjecture or judgment.

  • 그는 어제 온 듯.

    geu-neun eo-je on deus., geu neun eo je on deus.

    '듯' naturally expresses an indirect or softer conjecture.

  • 그는 어제 온 듯 같다.

    geu-neun eo-je on deus gat-da., geu neun eo je on deus gat da.

    Using both '듯' and '같다' together is redundant and awkward; only one should be used.

  • 비가 올 듯 하다.

    bi-ga ol deus ha-da., bi ga ol deus ha da.

    '듯 하다' is commonly used to express conjecture about the future.

  • 그 사람은 사자 같다.

    geu sa-ram-eun sa-ja gat-da., geu sa ram eun sa ja gat da.

    '같다' is suitable for clear metaphorical comparisons.

  • 그 사람은 사자 듯.

    geu sa-ram-eun sa-ja deus., geu sa ram eun sa ja deus.

    '듯' is more suitable for conjecture than metaphorical comparisons.

  • 그가 화난 듯 보인다.

    geu-ga hwa-nan deus bo-in-da., geu ga hwa nan deus bo in da.

    '듯' naturally expresses conjecture about a state or feeling.

  • 그가 화난 같다.

    geu-ga hwa-nan gat-da., geu ga hwa nan gat da.

    '같다' fits direct comparisons, but '화난 같다' is awkward; the correct form is '화난 것 같다'.

Quick quiz

  1. Which sentence correctly uses '듯'?

    다음 중 '듯'를 올바르게 사용한 문장은?(da-eumjung'deus'reulol-ba-reu-gesa-yong-hanmun-jang-eun?, daeumjung'deus'reulolbareugesayonghanmunjangeun?)
  2. When should you use '같다'?

    '같다'를 써야 하는 경우는?('gat-da'reulsseo-yaha-neungyeong-u-neun?, 'gatda'reulsseoyahaneungyeonguneun?)
  3. What does '그가 화난 듯 보인다.' mean?

    '그가 화난 듯 보인다.' 문장의 의미는?('geu-gahwa-nandeusbo-in-da.'mun-jang-uiui-mi-neun?, 'geugahwanandeusboinda.'munjanguiuimineun?)

More comparisons to explore

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