1. Very narrow
   - slender, thin

See also: narrow

• unimpeachably
• unimpeded
• unimportance
• unimportant
• unimposing
• unimpregnated
• unimpressed
• unimpressionable
• unimpressive
• unimpressively
• unimprisoned
• unimproved
• unincorporated
• unindustrialised
• unindustrialized
• uninebriated
• uninfected
• uninflected
• uninfluenced
• uninfluential
• uninformative
• uninformatively
• uninformed
• uninhabitable
• uninhabited