adverb taking the 'to' particle, noun or participle which takes 'suru', noun, taru-adjective, intransitive verb
clearly; distinctly; evidently
Describes something being clear, distinct, or unmistakable. Often used with する or と to modify verbs, or as a たる adjective in literary style. Common in formal or written Japanese.
彼の説明で問題点が判然とした。
His explanation made the problem points clear.
両者の違いは判然としない。
The difference between the two is not clear.
判然たる証拠がないため、判断を保留した。
Since there is no clear evidence, I suspended judgment.