Thus, in physics, the sensitiveness of a magnetic needle is the ease with which it may be deflected, as by another magnet; its susceptibility is the degree to which it can be magnetized by a given magnetic force or the amount of magnetism it will hold.

J. C. Fernald, English Synonyms and Antonyms (1914)

Example sentences

sensitivity It's a topic I approach with care and sensitivity.
sensibility I can't compete with the delicate sensibility of Tom.
delicacy Fried spiders are a regional delicacy in Cambodia.
susceptibility Exposure to radiation causes susceptibility to mutations.
tenderness I looked at her and saw tenderness in her eyes.

Popularity over time

Word	1850 → 2019	Trend
sensitiveness		falling
sensitivity		steady
sensibility		rising
delicacy		steady
susceptibility		falling
tenderness		rising

Use in printed books, per decade from 1850 to 2019.

By length

4 letters: tact¹
8 letters: delicacy⁴
10 letters: tenderness³
11 letters: sensitivity⁵, sensibility⁵
14 letters: susceptibility⁶

The small number after each word is its number of syllables (delicacy⁴ = 4 syllables).