Impossible to permeate.
Not allowing passage, especially of liquids; waterproof.
Having the faculty of sensation; pertaining to the senses.
Responsive to stimuli.
Easily offended, upset, or hurt.
Important, intricate, and requiring great delicacy.
Capable of offending, upsetting, or hurting.
Accurate; able to register small changes in some property.
Meant to be concealed or kept secret.
A person with a paranormal sensitivity to something that most cannot perceive.