What is きっと?
きっと is an adverb expressing strong belief or confidence, meaning "surely," "certainly," "definitely," or "I'm sure." It shows the speaker's conviction that something will happen or is true.
きっと成功する
"I'm sure it will succeed"
きっと来る
"He'll definitely come"
きっと大丈夫
"It'll surely be okay"
Usage and Meaning
Expressing confidence
きっとうまくいく
"It'll surely go well"
きっと合格する
"You'll definitely pass"
Shows strong optimism
Confident prediction
Emphasizing certainty
きっとそうだ
"That's surely so"
きっと彼だ
"It's definitely him"
Strong conviction
Encouraging others
きっとできるよ
"You can surely do it"
きっと良くなる
"It'll definitely get better"
Supportive, motivational
Combining with Other Patterns
きっと + だろう
きっと来るだろう
"He'll surely come"
きっと成功するだろう
"It'll surely succeed"
Double certainty marker
Very confident
きっと + はずだ
きっとうまくいくはずだ
"It should surely go well"
Logical expectation + confidence
きっと + にちがいない
きっと彼にちがいない
"It's surely him"
Very strong conviction
Almost redundant but emphatic
Certainty Level
きっと shows high confidence (75-90%)
30-50%: たぶん (probably)
50-70%: おそらく (probably)
75-90%: きっと (surely)
90-95%: 絶対に (absolutely)
きっと = strong belief
Positive vs Negative
Usually with positive outcomes
Natural: きっと成功する
"Surely will succeed"
Less common: きっと失敗する
"Surely will fail" (sounds odd)
きっと used mostly for positive expectations
For negative, use たぶん
Better: たぶん失敗する
"Probably will fail"
Or: 失敗するかもしれない
"Might fail"
きっと rarely for negative predictions
Common Contexts
Encouragement
大丈夫、きっとできる
"It's okay, you can surely do it"
きっとうまくいくよ
"It'll surely go well"
諦めないで。きっと夢は叶う
"Don't give up. Your dream will surely come true"
Motivational contexts
Predictions
きっと明日は晴れる
"It'll surely be sunny tomorrow"
きっと彼は来る
"He'll definitely come"
Confident forecasts
Hope and wishes
きっと良くなる
"It'll surely get better"
きっと幸せになれる
"You'll surely be happy"
Optimistic hopes
Position in Sentence
Beginning of sentence
きっと、君ならできる
"Surely, you can do it"
Emphasis at start
Middle of sentence
彼はきっと来る
"He'll surely come"
君はきっと成功する
"You'll surely succeed"
Most common position
Polite and Casual
Works in both
Casual: きっと大丈夫だよ
"It'll surely be okay"
Polite: きっと大丈夫です
"It'll surely be okay"
Same meaning, adjust verb ending
Common Patterns
きっと～よ (casual emphasis)
きっとうまくいくよ
"It'll surely go well"
きっとできるよ
"You can surely do it"
Friendly, encouraging
きっと～から (because surely)
きっと成功するから、心配しないで
"It'll surely succeed, so don't worry"
大丈夫、きっと来るから
"It's okay, he'll surely come"
きっと vs たぶん
きっと - Strong belief (75-90%)
きっと晴れる
"It'll surely be sunny"
More confident
Optimistic
たぶん - Moderate probability (50-70%)
たぶん晴れる
"It'll probably be sunny"
Less certain
Neutral
きっと vs 絶対
きっと - Surely (75-90%)
きっと成功する
"It'll surely succeed"
Strong but not absolute
Room for doubt
絶対 - Absolutely (95%+)
絶対に成功する
"It'll absolutely succeed"
Maximum confidence
No doubt
With Negative (Rare)
Not common with negative
Unnatural: きっと来ない ⚠️
Better: たぶん来ない ✓
Or: 来ないと思う ✓
きっと mainly for positive
Emotional Tone
Shows optimism
きっと良くなる
"It'll surely get better"
きっと幸せになれる
"You'll surely be happy"
Positive outlook
Hope and confidence
In Questions
Seeking confirmation
きっと成功するよね？
"It'll surely succeed, right?"
きっと大丈夫だよね？
"It'll surely be okay, right?"
Seeking reassurance
Practice Sentences
Basic
きっと成功する
"It'll surely succeed"
きっと大丈夫
"It'll surely be okay"
きっと来る
"He'll definitely come"
Intermediate
頑張れば、きっと夢は叶う
"If you try hard, your dream will surely come true"
心配しないで。きっとうまくいくから
"Don't worry. It'll surely go well"
きっと彼は理解してくれるはずだ
"I'm sure he'll understand"
Advanced
困難な道のりだが、諦めなければ
きっと成功する。信じて進み続けよう。
努力は必ず報われる。
"It's a difficult path, but if you don't give up,
you'll surely succeed. Let's believe and keep going.
Effort will definitely be rewarded."
今は辛いかもしれない。でも、
時間が経てば、きっと良い思い出になる。
この経験はきっと君を強くする。
"It might be tough now. But
with time, it'll surely become a good memory.
This experience will surely make you stronger."
Related Grammar Points
- たぶん - Probably (moderate certainty)
- おそらく - Probably (formal)
- 絶対に - Absolutely (highest certainty)
- 必ず - Without fail/Certainly
- Certainty adverbs - Expressing probability