The definition of an inhibition is something that holds you back or restrains you from doing or thinking something.(noun)
When you are concerned about your body and don't want to wear a swimsuit or go to the beach, your concern is an example of your inhibition.
See inhibition in Webster's New World College Dictionary
Origin: ME inhibicion < OFr < L inhibitio
See inhibition in American Heritage Dictionary 4
Learn more about inhibition