1. Without problems or difficulties
   "NASA reported a trouble-free launch"

See also: untroubled

• inadvertency
• inadvertent
• inadvertently
• inadvisability
• inadvisable
• inadvisably
• inaesthetic
• inalienability
• inalienable
• inalienably
• inalterable
• inamorata
• inamorato
• inane
• inanely
• inanimate
• inanimately
• inanimateness
• inanition
• inanity
• Inanna
• inapplicability
• inapplicable
• inapposite
• inappositeness