Usage patterns 大おお いに 〈 動どう 詞し 〉 to [verb] greatly / a great deal
I enjoyed the holiday to the fullest.
大おお いに 期き 待たい する to have high hopes/expectations
I have high hopes for his future success.
大おお いに 感かん 謝しゃ する to be deeply grateful
I'm deeply grateful to the friend who helped me.
大おお いに 悩なや む to be greatly troubled/worried
I agonized a great deal over my career path.
Related words· 6 非常に is a more formal, neutral intensifier used in written or formal speech, while 大いに carries a livelier, more dynamic nuance often tied to actions or emotions.
とても is the everyday, general-purpose word for 'very', whereas 大いに is a bit more emphatic and literary, often paired with verbs of action or feeling.
大変 is a common intensifier usable with both adjectives and verbs in polite speech, while 大いに leans toward emphasizing the degree of an action.
すごく is casual, conversational 'really/so', while 大いに is more formal and often found in written or slightly elevated speech.
Show 2 more Show fewer 大いに means 'greatly' and often modifies verbs of action or emotion, whereas 少なからず more specifically emphasizes an amount that is 'not small'.
大いに is a more formal, literary way to say 'greatly', whereas うんと is casual and spoken.
Written forms 大おお いに Usage 90%
Standard kanji spelling; high-frequency in news and general use.
おおいに Usage 10%
多おお いに
irregular kanji usage
Irregular kanji usage; not recommended for learners.
Etymology Derived from the adjective 多い (おおい , 'many') with the adverbial suffix に . The kanji 大 (big/great) is used for its meaning, though the reading おおい is irregular here.
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