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

See also: uncertain

• intranet
• intransigence
• intransigency
• intransigent
• intransigently
• intransitive
• intransitive verb
• intransitive verb form
• intransitively
• intransitiveness
• intransitivise
• intransitivity
• intransitivize
• intraocular lens
• intraocular pressure
• intrapersonal
• intrapreneur
• intrapulmonary
• intrasentential
• intraspecies
• intraspecific
• intrastate
• intrathecal
• intrathoracic
• intrauterine