inhibited

adjective
UK /ɪnˈhɪbɪtɪd/
US /ɪnˈhɪbɪtɪd/

Too shy to act or speak freely.

She felt inhibited at the party and hardly talked to anyone.


OTHER MEANINGS

2. Prevented or slowed down from happening.

The reaction was inhibited by the cold temperature.

3. Kept under control or held back.

His inhibited laughter showed he was trying to stay serious.

4. In biology, stopped or reduced in function.

The inhibited enzyme could no longer break down the sugar.