The Collaborative International Dictionary
Ticklish \Tic"klish\, a.
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.-
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. -
Difficult; nice; critical; as, a ticklish business.
Surely princes had need, in tender matters and ticklish times, to beware what they say.
--Bacon. [1913 Webster] -- Tic"klish*ly, adv. -- Tic"klish*ness, n.
Wiktionary
n. The property of being ticklish.
Usage examples of "ticklishness".
The ticklishness on the very top of my head and the dry cracking sound at the base of my neck: between them lay the means to that suspension of judgment.
She felt it inside her body as a consuming ticklishness, which turned into the knowledge that I was clinging to my human form, like all the rest, except that my particular way was incomprehensible to them.
But then I had a quick sensation of ticklishness on the top of my head, a shiver in my body, and I remembered out of nowhere a peculiar whistling that don Juan used to perform at night and had endeavored to teach me.