1. (sensitivity leading to easy irritation or upset)
oversensitiveness
synonim: nadwrażliwość
synonim: mimozowatość
synonim: przeczulenie
synonim: przewrażliwienie

2. (the ability to respond to physical stimuli or to register small physical amounts or differences
"a galvanometer of extreme sensitivity"
"the sensitiveness of Mimosa leaves does not depend on a change of growth")
sensitivity, sensitiveness: : synonim: wrażliwość