dic.yahoo.co.jpweblio.jp、and other dictionaries, state that the parts of speech for「たくさん」are noun and 形容動詞。imho, usage cases where たくさん is used as 形容詞 is uncommon. I have seen たくさん take the な particle in sentences such as "写真{しゃしん}がたくさんな記事{きじ}" . But, I have never seen たくさん take the に particle.

I recently heard the sentence:


That sounds ok to me but looks weird. I cannot help but wonder if something grammatically needs to be between "たくさん" and "参加". Surely, there must be a 助詞{じょし}, Perhaps, can you write:

人がたくさん 参加した

To function as a full-fledged 形容動詞、たくさん must be able to take the 「に」助詞. I've never said "...たくさんに...". I would like to add this to my vocabulary. examples please?

In the thread titled たくさん:形容動詞 Tonky seems to say that "...たくさんに..." never happens. In the lengthy thread titled usage of たくさん vs. 多い no one creates a sentence that has the "...たくさんに..." construct.

If たくさん can take な, but not a に、then it would be questionable whether it is really a 形容動詞, right?

  • 2
    I think you might find the classifications in most Japanese dictionaries misleading for this particular word.
    – user1478
    Sep 28, 2014 at 3:38
  • So, the 助詞 between "たくさん" and "参加" feels like "が" to me. But, omitting "が" puzzles me because the meaning of は vs. が seems so important you can't omit either. As omitting an を is standard fair, maybe it is "たくさんを参加した" (but that sounds weird to me). In speaking I'd just say "たくさん参加している" and leave it at that. The 助詞 really doesn't matter I guess.
    – user312440
    Sep 29, 2014 at 3:04

1 Answer 1


I think there are a couple of points to make here:

  1. Nouns of quantity are similar to number+classifier compounds in that they're often used in "bare form" as adverbs:

    りんごを1個食べた ~ 1個のりんごを食べた
    りんごをたくさん食べた ~ たくさんのりんごを食べた

    in both cases, the former version with the adverbial form is the more natural one, and the latter tends to be used only when for some reason, the number+classifier+noun needs to be confined into one noun phrase. Note therefore: No particle is missing after たくさん.

  2. The reason that *たくさんに doesn't exist is not that たくさん is not a 形容動詞, but semantic reasons, similar to how there's no "manily" in English, and "in a many way" doesn't make sense.

  3. It seems you might not be aware that some 形容動詞 take の instead of な, for example たくさん and 普通. You'll find that there's some discussion whether it really makes sense to label these as 形容動詞 (see e.g. So-called の-adjectives - how does の *really* work?), but at least this explains why you found that label in your dictionary.

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .