1. Very suddenly and to a great degree
   "conditions that precipitously increase the birthrate"
   - sharply 
2. Abruptly; in a precipitous manner
   "the mountains rose precipitously from the shore"

See also: precipitous

• rattail
• rattail cactus
• rattail fish
• rattan
• rattan cane
• rattan palm
• ratteen
• ratter
• Rattigan
• ratting
• rattle
• rattle down
• rattle off
• rattle on
• rattle weed
• rattle-top
• rattlebox
• rattlebrained
• rattled
• rattlepated
• rattler
• rattlesnake
• rattlesnake fern
• rattlesnake master
• rattlesnake orchid