·adj Difficult; nice; critical; as, a ticklish business.
II. Ticklish ·adj Standing so as to be liable to totter and fall at the slightest touch; unfixed; easily affected; unstable.
III. Ticklish ·adj Sensible to slight touches; easily tickled; as, the sole of the foot is very ticklish; the hardened palm of the hand is not ticklish.