(1)不可航行的
不受潮汐影响的河流或水域为不可航行的。

(2)不可通航的(→nonnavigable waters)

• redeundo
• redevance
• red flag
• red-flag legislation
• red(-)handed
• red herring
• red-herring prospectus
• redhibere
• redhibition
• redhibitory action
• redimere
• redirect examination
• rediscount
• rediscounting paper
• rediscount rate
• redisseisin
• redisseisina
• redisseisor
• redistribution
• redistribution of seats
• redistricting
• reditus
• reditus albi
• reditus assisus
• reditus capitales