1. In an unsteady manner
   - unsteadily, falteringly, woozily 
2. Showing lack of certainty
   "he paused uncertainly"

See also: uncertain

• nonrepresentative
• nonresident
• nonresidential
• nonresilient
• nonresinous
• nonresiny
• nonresistance
• nonresistant
• nonresonant
• nonrestrictive
• nonrestrictive clause
• nonreticulate
• nonretractable
• nonretractile
• nonreturnable
• nonreversible
• nonrhythmic
• nonrigid
• nonruminant
• nonsectarian
• nonsegmental
• nonsegregated
• nonsense
• nonsense verse
• nonsensical