wooden
Made of wood, like a wooden chair or table.
Wooden describes something made from wood, like a wooden chair, a wooden fence, or the wooden beams that hold up a barn. Wood comes from trees, and people have built with it for thousands of years because it's strong, workable, and readily available.
The word also describes movements or performances that seem stiff and unnatural. When an actor gives a wooden performance, they deliver their lines without emotion or energy, like a puppet instead of a real person. A wooden smile looks forced and fake rather than warm and genuine. If someone moves in a wooden way after sitting still for too long, their body feels stiff and awkward, almost like their joints don't bend smoothly anymore.
You might also hear about getting the wooden spoon in a competition, an old expression for coming in last place, where the person with the lowest score received an actual wooden spoon as a humorous (and a bit embarrassing) prize.