KEY: Deteriorate, [See AMELIORATE].

• Indulge
• Indulgence, [See DILIGENCE]
• Indulgent
• Indurate, [See HARDEN]
• Industrious
• Industry
• Inebriety, [See EBRIETY]
• Ineffable
• Ineffectual
• Inelastic, [See ELASTIC]
• Inelegant, [See ELEGANCE]
• Ineligible, [See ELIGIBLE]
• Inept, {[See_A]?}
• Inequality
• Inequitable, [See EQUITABLE]
• Inert
• Inertness, [See INFECT]
• Inestimable
• Inevitable
• Inexact, [See ACCURATE]
• Inexcitable, [See EXCITABILITY]
• Inexcusable
• Inexhaustible
• Inexistence, [See EXISTENCE]
• Inexorable