つまずく

つまずく
verb (godan, intransitive)
to stumble; to trip
自動詞 intransitivebusinessmovement
See also: 蹴躓(けつまず) (emphatic variant: to trip badly)
Conjugation
AffirmativeNegative
Presentつまずくつまずかない
Present politeつまずきますつまずきません
Pastつまずいたつまずかなかった
Past politeつまずきましたつまずきませんでした
て formつまずいてつまずかなくて
ている presentつまずいているつまずいていない
ている politeつまずいていますつまずいていません
ている pastつまずいていたつまずいていなかった
ている past politeつまずいていましたつまずいていませんでした
Conditional ばつまずけばつまずかなければ
Conditional たらつまずいたらつまずかなかったら
Volitionalつまずこう
Volitional politeつまずきましょう
Potentialつまずけるつまずけない
Passiveつまずかれるつまずかれない
Causativeつまずかせるつまずかせない
Imperativeつまずけつまずくな
1. to stumble; to trip
To catch one's foot on something and lose balance while walking or running. The obstacle causes an unintended forward motion that may or may not result in a fall.
(いし)つまずいて(ころ)んだ
I tripped on a stone and fell.
Please be careful not to trip in the dark hallway.
I tripped on a step and twisted my ankle.
2. to encounter an obstacle; to hit a snag
Figuratively, to encounter an unexpected problem or difficulty that hinders progress in work, life, or a project.
The new project hit a snag due to budget issues.
()だしからつまずいてしまった
I stumbled right from the start.
I was struggling with math in my exam prep, so I started going to a cram school.

Particle: the thing you trip over takes , not (いし)つまずく. In the figurative sense the same marks the subject or stage that defeated you (数学(すうがく)つまずく), while marks the cause or the point at which things went wrong.

Writing

Can be written (つまず)く, but that kanji is outside the standard list and hiragana is much more common in everyday writing.

What IT does and DOESN'T mean

つまずく is only the catching of the foot and the loss of balance. Whether you actually go down is a separate verb, which is why (ころ) is so often added after it, as in example 1.

Usage

The physical meaning (sense 1) belongs to everyday conversation; the figurative meaning (sense 2) is frequent in news and business writing about projects, negotiations, and studies that ran into trouble early.

Common collocations