sensitive
US /ˈsen.sə.t̬ɪv/
UK /ˈsen.sə.t̬ɪv/

1.
easily offended or upset
:
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He's very sensitive about his weight.
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Don't be so sensitive; it was just a joke.
2.
quick to detect or respond to slight changes, signals, or influences
:
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The new equipment is highly sensitive to temperature changes.
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Her skin is very sensitive to sunlight.
3.
requiring tact or caution; delicate
:
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This is a very sensitive issue that needs careful handling.
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The negotiations involved several sensitive points.