Webster's Revised Unabridged Dictionary · 1913

Ticklish

Ticklish , adjective

1.
Sensible to slight touches; easily tickled; as, the sole of the foot is very ticklish; the hardened palm of the hand is not ticklish. — Bacon
2.
Standing so as to be liable to totter and fall at the slightest touch; unfixed; easily affected; unstable.
Can any man with comfort lodge in a condition so dismally ticklish? — Barrow
3.
Difficult; nice; critical; as, a ticklish business.
Surely princes had need, in tender matters and ticklish times, to beware what they say. — Bacon