KEY: Boundless.
SYN: Unbounded, immeasurable, infinite, unlimited, illimitable,unmeasurable.
ANT: Narrow, restricted, limited, confined, circumscribed.

• Rapid
• Rapidity
• Rapture
• Rarefy
• Rascal
• Rash
• Rashness
• Rate_
• Rate_\v
• Rather_than
• Ratification
• Ratify
• Rational
• Ravage
• Ravage \v
• Rave
• Ravel
• Ravenous
• Raving
• Ravish
• Raw
• Raze
• Reach
• React
• Read