sensitive

American Heritage® Dictionary of the English Language, Fourth Edition

1. adj. Capable of perceiving with a sense or senses.
2. adj. Responsive to external conditions or stimulation.
3. adj. Susceptible to the attitudes, feelings, or circumstances of others.
4. adj. Quick to take offense; touchy.
5. adj. Easily irritated: sensitive skin.
6. adj. Readily altered by the action of an agent: film that is sensitive to light.
7. adj. Registering very slight differences or changes of condition. Used of an instrument.
8. adj. Fluctuating or tending to fluctuate, as in price: sensitive stocks.
9. adj. Of or relating to classified information: sensitive defense data; holds a sensitive position in the State Department.
10. n. A sensitive person.
11. n. One held to be endowed with psychic or occult powers.

Century Dictionary and Cyclopedia

1. Of, pertaining to, or affecting the senses; depending on the senses.
2. Having sense, sensibility, or feeling; capable of receiving impressions from external objects: often extended, figuratively, to various inanimate objects.
3. Of keen sensibility; keenly susceptible of external influences or impressions; easily and acutely affected or moved by outward circumstances or impressions: as, a sensitive person, or a person of sensitive nature: figuratively extended to inanimate objects.
4. Specifically.
5. In entomology, noting parts of the surface of the antennæ: which are peculiarly modified and, it is supposed, subservient to some special sense. These surfaces exhibit an immense number of microscopical pores, covered with a very delicate transparent membrane; they may be generally diffused over the joints or variously arranged in patches, the position of which has been used in the classification of certain families of Coleoptera.
6. Susceptible in a notable degree to hypnotism; easily hypnotized or mesmerized.
7. Noting a condition of feverish liability to fluctuation: said of markets, securities, or commodities.
8. So delicately adjusted as to respond quickly to very slight changes of condition: said of instruments, as a balance.
9. In chem. and photography, readily affected by the action of appropriate agents: as, iodized paper is sensitive to the action of light.
10. Sensible; wise; judicious.
11. Synonyms and Sentient, etc. See sensible.
12. n. Something that feels; a sensorium.
13. n. A sensitive person; specifically, one who is sensitive to mesmeric or hypnotic influences or experiments. See I., 3 .
14. n. the common sense in the Aristotelian use.

Wiktionary

1. adj. Having the faculty of sensation; pertaining to the senses.
2. adj. Responsive to stimuli.
3. adj. Of a person, easily offended, upset or hurt.
4. adj. Of an issue, capable of offending, upsetting or hurting.
5. adj. Accurate (instrument)
6. n. One with a paranormal sensitivity to something that most cannot perceive.

GNU Webster's 1913

1. adj. Having sense of feeling; possessing or exhibiting the capacity of receiving impressions from external objects.
2. adj. Having quick and acute sensibility, either to the action of external objects, or to impressions upon the mind and feelings; highly susceptible; easily and acutely affected.
3. adj. (Mech.) Having a capacity of being easily affected or moved.
4. adj. (Chem. & Photog.) Readily affected or changed by certain appropriate agents.
5. adj. rare Serving to affect the sense; sensible.
6. adj. Of or pertaining to sensation; depending on sensation.

WordNet 3.0

1. n. someone who serves as an intermediary between the living and the dead
2. adj. able to feel or perceive
3. adj. being susceptible to the attitudes, feelings, or circumstances of others
4. adj. responsive to physical stimuli
5. adj. of or pertaining to classified information or matters affecting national security
6. adj. hurting.