ONO.JEPANG.ORG

Entry

ニッと

nitto

To give a brief, sudden, and often confident grin.

Meaning

Quick Meaning

This word describes the action of breaking into a brief, sudden smile or grin. The 'tto' ending implies that the action is momentary and abrupt. It often carries a slightly mischievous, confident, or knowing undertone, making it quite different from a continuous, friendly smile.

  • grinning briefly out of confidence or amusement
  • flashing a quick smile in reaction to something

Sense Map

Confident or Mischievous Grin

Describes a momentary smirk or grin that often displays confidence, satisfaction, or a touch of mischief.

カメラに向かってニッと笑う

Sudden Smiling Reaction

Describes a spontaneous, brief smile triggered by noticing something amusing or favorable.

思わずニッとする

Usage Note

How to Use

  • ニッとする

    Functions as a verb meaning 'to flash a grin' or 'to smile briefly'.

  • ニッと笑う

    The most common collocation, combining the onomatopoeia directly with 'warau' (to laugh/smile) to mean 'to grin'.

  • ニッと + verb

    Acts as an adverb modifying other actions, indicating that the action is performed with a quick grin.

How to Use

Common Phrases

ニッと笑う

to grin

ニッとする

to give a brief smile

口元がニッとする

one's lips curl into a grin

思わずニッと笑う

to unconsciously grin

Nuance

Context Nuance

Common ContextsNuanceUsage Note
Achieving a victory or pulling off a prank.positiveOften highlights confidence, satisfaction, or a cheeky attitude.
Seeing something mildly amusing suddenly.neutralHighlights the spontaneous, uncontrollable nature of a quick smile.

Similar Words

Comparison Table

Similar WordsWhen to UseNot the Same asMini Example

にこにこ

にこにこ / opposite

Use for a warm, friendly, and continuous smile.Unlike the abrupt and brief ニッと, ニコニコ is soft, welcoming, and sustained over time.ニコニコ笑う

にたにた

にたにた / contrast

Use for a creepy, continuous, and broad smirk.にたにた implies an ongoing, often disturbing smirk, whereas ニッと is just a momentary flash.にたにた笑う

にたぁ

にたぁ / contrast

Use for a slow, sinister, or devilish smile.ニタァ focuses on a slow, creepy facial distortion, completely opposite to the quick snap of ニッと.ニタァと笑う

Usage Note

Common Mistakes

Using this word to describe a welcoming smile for a customer.

Use a different word for friendly greetings. This word is too brief and might come off as a smirk or lack of genuine warmth.

Assuming it means laughing out loud.

This word involves only the visual movement of the mouth forming a smile or grin, usually without sound.

Examples

Examples

彼はカメラに向かってニッと笑った。

かれはカメラにむかってニッとわらった。

He flashed a quick grin at the camera.

VisualShows a fleeting smile that often looks cool or confident.

Source: Internal

その手紙を読んで、彼女は思わずニッとした。

そのてがみをよんで、かのじょはおもわずニッとした。

Reading the letter, she unconsciously broke into a brief smile.

VisualAn example of a spontaneous reaction to something pleasant.

Source: Internal

相手のミスに気づき、彼は心の中でニッと笑った。

あいてのミスにきづき、かれはこころのなかでニッとわらった。

Noticing his opponent's mistake, he grinned inwardly.

FigurativeShows a hidden smirk as a sign of satisfaction.

Source: Internal

少年はいたずらが成功して、ニッと口角を上げた。

しょうねんはいたずらがせいこうして、ニッとこうかくをあげた。

The boy's mouth quickly curled into a grin, his prank successful.

VisualEmphasizes the movement of the corners of the mouth indicating a quick, mischievous grin.

Source: Internal

その答えを聞いて、先生は一瞬だけニッとした。

そのこたえをきいて、せんせいはいっしゅんだけニッとした。

Hearing that answer, the teacher gave a brief grin for just a moment.

VisualDescribes a very brief, suppressed smile.

Source: Internal

Similar Words

Questions

Is this word appropriate for greeting someone?

Not really. It gives the impression of a brief, sharp, or confident smile. For warm greetings, use a word that describes a lasting, friendly smile instead.

Why does it have 'tto' at the end?

In Japanese onomatopoeia, the 'tto' ending (a small 'tsu' plus 'to') generally signifies an action that is abrupt, momentary, and quickly completed.

Can this word be used for a villain's smile?

Yes. Confident characters or those with hidden motives are often described as flashing a quick grin with this word. However, for a lingering, creepy smirk, other words are more suitable.

Source Details

Entry ID
2747260
Source
JMdict_english
Revision
-
Review notes
No special notes
Active language
English
Previous entry
きゅう (kyuu)
Next entry
パシャン (pashan)
IDENESFRPTJA