01 · Side by side

Side by side

Comparison sheet
AspectSisuGrit
Triggered byA wallA goal
DurationTrait; stability untestedYears
Has a harmful poleYesNo
Needs passionNoYes
02 · Which one you meant

Which one did you mean?

In shortReaders who land here meaning Sisu rather than Grit are usually searching for phrases like “finnish word for inner strength”, “sisu meaning”, “is sisu the same as grit”.

Sisu

  • “finnish word for inner strength”
  • “sisu meaning”
  • “is sisu the same as grit”
  • “finnish perseverance word”

Grit

  • “is grit real”
  • “does grit predict success”
  • “grit vs conscientiousness”
  • “angela duckworth grit criticism”
03 · Which came first

Which came first

In shortSisu. 1500s — Sisu appears in the earliest surviving Finnish texts. Mikael Agricola uses it for a thing's intrinsic quality or nature — including rakkauden sisu, 'the sisu of love'.

  1. 1500s

    Sisu. Sisu appears in the earliest surviving Finnish texts. Mikael Agricola uses it for a thing's intrinsic quality or nature — including rakkauden sisu, 'the sisu of love'.

  2. 2007

    Grit. Angela Duckworth, with Christopher Peterson, Michael Matthews and Dennis Kelly, publish the construct and the Grit Scale in the Journal of Personality and Social Psychology.

04 · The mix-up

Where the confusion comes from

The mix-up“Sisu is simply the Finnish word for grit.”
What's true

The only validated instrument for it doesn't measure one thing. The 2022 Sisu Scale confirmed an independent harmful sisu factor — harm to reason, harm to self, harm to others — alongside the beneficial one. Grit and hardiness scales contain no such pole. English inspirational writing keeps only half the word.

05 · Read either one

Read either one in full