KEY: Congestion.
SYN: Congeries, accumulation, glomeration, redundancy, plethora.
ANT: Dissipation, diffusion, clearance, evacuation, colliquation.

• Initiate, [See INAUGURATE]
• Initiative
• Inject, [See EJECT]
• Injunction
• Injure
• Injurious
• injustice, [See JUDICIOUS]
• Injustice, [See JUSTICE_and_INIQUITY]
• Inlet
• Inn
• Innate, [See CONGENITAL]
• innate, [See INHABITANT]
• Inner, Inmost
• Innocence
• Innocent
• Innocuous
• Innovation
• Innoxious
• Innumerable, [See NUMBERLESS]
• Innutritions
• Inobservance, [See OBSERVANCE]
• Inoculate
• Inodorous
• Inoffensive, [See OFFENSIVE]
• Inofficious, [See OFFICIOUS]