What is having such a state or condition as a thing would have to a person who is blind; not well marked or easily discernible; hidden; unseen; concealed; as, a blind path; a blind ditch called?

blind — Having such a state or condition as a thing would have to a person who is blind; not well marked or easily discernible; hidden; unseen; concealed; as, a blind path; a blind ditch. (Webster's 1913.)

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