rash

American Heritage® Dictionary of the English Language, Fourth Edition

1. adj. Characterized by or resulting from ill-considered haste or boldness. See Synonyms at reckless.
2. adj. Archaic Quick in producing a strong or marked effect.
3. n. A skin eruption.
4. n. An outbreak of many instances within a brief period: a rash of burglaries.

Century Dictionary and Cyclopedia

1. Quick; sudden; hasty.
2. Hasty in council or action; precipitate; headstrong; impetuous; venturesome: as, a rash statesman or minister; a rash commander.
3. Marked by or manifesting inconsiderate haste in speech or action; resulting from temerity or recklessness: as, rash words; rash measures.
4. Requiring haste; urgent.
5. Synonyms and Enterprising, Foolhardy, etc. (see adventurous), precipitate, hasty, headlong, inconsiderate, careless, heedless. See list under reckless.
6. To put together hurriedly; prepare with haste.
7. To publish imprudently; blab.
8. To cook too rapidly; burn from haste: as, the beef has been rashed in the roasting.
9. So ripe or dry as to break or fall readily, as corn from dry straw in handling.
10. n. Corn in the straw, so dry as to fall out with handling.
11. To tear or slash violently; lacerate; rend; hack; hew; slice.
12. n. A kind of inferior manufacture of silk or of silk and stuff.
13. n. A more or less extensive eruption on the skin.
14. n. An obsolete or dialectal form of rush.
15. Quick, brisk, hot; causing too quick a result: as, a rash fire.
16. n. A crisp rustle; a crackle.

Wiktionary

1. adj. hasty, not careful or considered.
2. n. medicine An area of reddened, irritated, and inflamed skin.
3. n. A surge in problems; a spate, string or trend
4. v. obsolete To prepare with haste.

GNU Webster's 1913

1. v. obsolete To pull off or pluck violently.
2. v. obsolete To slash; to hack; to cut; to slice.
3. n. (Med.) A fine eruption or efflorescence on the body, with little or no elevation.
4. n. obsolete An inferior kind of silk, or mixture of silk and worsted.
5. adj. obsolete Sudden in action; quick; hasty.
6. adj. obsolete Requiring sudden action; pressing; urgent.
7. adj. Esp., overhasty in counsel or action; precipitate; resolving or entering on a project or measure without due deliberation and caution; opposed to prudent; said of persons.
8. adj. Uttered or undertaken with too much haste or too little reflection
9. adj. Prov. Eng. So dry as to fall out of the ear with handling, as corn.
10. v. obsolete To prepare with haste.

WordNet 3.0

1. adj. marked by defiant disregard for danger or consequences
2. n. a series of unexpected and unpleasant occurrences
3. n. any red eruption of the skin
4. adj. imprudently incurring risk