- Difficult to deal with - Sensitive - Tricky to be so inclined to laugh at the slightest touch - Sensible to slight touches; easily tickled; as, the sole
of the foot is very ticklish; the hardened palm of the hand is not
ticklish. - Standing so as to be liable to totter and fall at the
slightest touch; unfixed; easily affected; unstable. - Difficult; nice; critical; as, a ticklish business.