KEY: Progress \.\\.
SYN: Advancement, advance, movement, proceeding, Way, journey,proficiency, speed, growth.
ANT: Delay, stoppage, retreat, stay, retrogression, failure,relapse.

• Insert, [See INTRODUCE]
• Inside
• Insidious
• Insignificant, [See SIGNIFICANT]
• Insincere, [See HARD]
• Insinuate
• Insipid
• Insist
• Insnare
• Insobriety, [See SOBRIETY]
• Insolence
• Insolent
• Insoluble, [See SOLUBLE]
• Insolvable, [See INSCRUTABLE]
• Insolvent
• Inspect
• Inspector, [See INSPECT]
• Inspiration
• Inspire
• inspirit, [See ENCOURAGE]
• Inspissation
• Instability
• Install
• Instalment
• Instance