When the green or flag cannot be seen from the teeing ground.

The Blind Hole is a term which is used if a golf player strokes without seeing the hole, because he can't see the hole or the flagstick. Before he strokes he can inform himself about the exact position and eventual hazards at the signs in the tee off area, but anyways blind holes are very challenging to play because the golfer can't exact [..]

golf games glossary reference to a hole on the putting green that cannot be viewed.

A hole whose green is not visible when an approach shot is made, thereby requiring a player to rely on senses other than sight, such as the unmistakable sound of an unseen golfer shouting after being [..]

If the putting green cannot be seen by the player as he approaches, the hole is called blind.

If the green or flag cannot be seen by the player as he approaches, the hole is called blind. E.g. a par 5 hole which is a dogleg obscured by trees. Alternate ;

 - Is a hole that is only partly through a material

A hole made in a workpiece that does not pass through it.

A tunnel which ends in the ground as a blind alley.

(engineering) A hole that does not extend completely through the wall; a dead end hole.