noun, na-adjective, noun which may take the genitive case particle 'no'
unclear speech; poor enunciation; garbled speech
Describes speech that is physically hard to understand, often due to slurring, mumbling, or a speech impediment. Can be used for children or adults.
See also: 舌足らず
彼は緊張すると舌っ足らずになる。
He becomes unclear in his speech when he gets nervous.
その子はまだ舌っ足らずで、何を言っているのかよくわからない。
That child still has poor enunciation, so it's hard to understand what they're saying.
noun which may take the genitive case particle 'no', na-adjective, noun
poorly expressed; unclear wording; inadequate explanation
Refers to written or spoken expression that is vague, imprecise, or fails to convey the intended meaning clearly. Often used for explanations, arguments, or wording.
See also: 舌足らず
彼の説明は舌っ足らずで、何が言いたいのか伝わらなかった。
His explanation was poorly expressed, and I couldn't understand what he wanted to say.
この文章は舌っ足らずな表現が多い。
This text has many imprecise expressions.