KEY: Data.
SYN: Facts, grounds, basis, axioms, postulates.
ANT: Conjecture, assumption, problem, proposition, inference,deduction.

• Importance
• Important
• Importation, [See IMPORT]
• Importunate
• Importune
• Impose
• Impose_on
• Imposing
• Imposition, [See CHEAT], ~_
• Impossible, [See POSSIBLE]
• Impost
• Impostor
• Imposture, [See IMPOSTOR_and_CHEAT]
• Impotence
• Impotent
• Impound, [See POUND]
• Impoverish, [See ENRICH]
• Impracticable, [See PRACTICABLE]
• Imprecate, [See IMPETRATE]
• Impregnable, [See PREGNABLE]
• Impregnate
• Impressive
• Impress
• Impress \v
• Imprison