How to say "shallow" in Japanese

Choosing the right word
  • 浅いあさいJLPT N4approx.Common
    i-adjectiveThe basic adjective: covers physical shallowness of water or containers and, figuratively, superficial knowledge or understanding. When you simply mean 'shallow' in either sense, this is the default choice.
    この川かわはあそこで浅あさくなっている。↗
    This river becomes shallow at that point.
  • 浅はかあさはかCommon
    na-adjectiveShallow in the sense of thoughtless and short-sighted: a critical word for a person's thinking, judgment, or plans, not for physical depth.
    私はあさはかにも彼かれが私を助たすけてくれるんだなあと思おもった。↗
    I foolishly imagined that he was going to help me.
  • 上滑りうわすべりCommon
    no-adjective, na-adjective, suru verb, intransitive verbSuperficial in the sense of staying on the surface: describes talk, discussion, or handling of a subject that glides along without going into depth. Think of a conversation that never gets below the surface.
  • 上っ調子うわっちょうしCommon
    na-adjective, nounFlippant and frivolous rather than truly 'shallow': describes a lighthearted, unserious manner or attitude. Choose it when someone is being flip or breezy, not when you mean shallow thought or knowledge.
  • 軽薄けいはくCommon
    na-adjective, nounFrivolous, flippant superficiality of character or behavior; a disapproving word for someone light and unserious in manner. For shallow water or shallow thinking it is seldom the word you want.
    「見た目みためは悪わるくないがちょっと軽薄けいはくそう」な外見がいけんとは裏腹うらはらに、彼女かのじょはいないし、女性じょせいに手てが早はやいワケでもない。↗
    In contrast to his "not bad looks but seems a bit of a dandy" appearance, he didn't have a girlfriend and he wasn't particularly fast with the ladies.

Use 「浅い」 for literal shallowness and superficial knowledge; 「浅はか」 for shallow, short-sighted thinking; 「上滑り」 for surface-level talk; 「上っ調子」 and 軽薄 for flippant, frivolous people or manners rather than shallow thought.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

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JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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