Synonyms for Supersensitive (same or very similar meaning)
WordNet sense 1 (having an allergy or peculiar or excessive susceptibility (especially to a specific factor)):
allergic, hypersensitive, hypersensitised, hypersensitized, sensitised, sensitized, supersensitised, supersensitizedWordNet sense 2 ((often followed by `of' or `to') yielding readily to or capable of):
susceptibleFrom the ODE community, based on WordNetadd/edit