From The Collaborative International Dictionary of English v.0.48 [gcide]:
Wooden \Wood"en\, a.
1. Made or consisting of wood; pertaining to, or resembling,
wood; as, a wooden box; a wooden leg; a wooden wedding.
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2. Clumsy; awkward; ungainly; stiff; spiritless.
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When a bold man is out of countenance, he makes a
very wooden figure on it. --Collier.
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His singing was, I confess, a little wooden. --G.
MacDonald.
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Wooden spoon.
(a) (Cambridge University, Eng.) The last junior optime
who takes a university degree, -- denoting one who is
only fit to stay at home and stir porridge. "We submit
that a wooden spoon of our day would not be justified
in calling Galileo and Napier blockheads because they
never heard of the differential calculus." --Macaulay.
(b) In some American colleges, the lowest appointee of the
junior year; sometimes, one especially popular in his
class, without reference to scholarship. Formerly, it
was a custom for classmates to present to this person
a wooden spoon with formal ceremonies.
Wooden ware, a general name for buckets, bowls, and other
articles of domestic use, made of wood.
Wooden wedding. See under Wedding.
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From WordNet (r) 3.0 (2006) [wn]:
wooden
adj 1: made or consisting of (entirely or in part) or employing
wood; "a wooden box"; "an ancient cart with wooden
wheels"
2: lacking ease or grace; "the actor's performance was wooden";
"a wooden smile"