crisp 
(krĭsp)
(krĭsp)adj. crisp·er, crisp·est
1. Firm but easily broken or crumbled; brittle: crisp potato chips.
2. Pleasingly firm and fresh: crisp carrot and celery sticks.
3.
a. Bracing; invigorating: crisp mountain air.
b. Lively; sprightly: music with a crisp rhythm.
4. Conspicuously clean or new: a crisp dollar bill.
5. Marked by clarity, conciseness, and briskness: a crisp reply.
6. Having small curls, waves, or ripples. Used of hair.
v. crisped, crisp·ing, crisps
v.tr.
To make or keep crisp.
v.intr.
To become or remain crisp.
n.
1. Something crisp or easily crumbled: The roast was burned to a crisp.
2. A dessert of fruit baked with a sweet crumbly topping: apple crisp.
3. Chiefly British A potato chip.
[Middle English, curly, from Old English, from Latin crispus; see sker-2 in the Appendix of Indo-European roots.]
crisply adv.
crispness n.