KEY: Answer.
SYN: Reply, response, counter-argument, confutation, acceptance,{(as_of_a_challenge)}, tally, counterpart, solution, vindication,apology, exculpation, defense, rejoinder, repartee, retort.
ANT: Challenge, question, defiance, summons, interrogation, query.

• Impermanence, [See PERMANENCE]
• Impermeable, [See PERMEABLE]
• Impersonal, [See PERSONAL]
• Impersonate
• Impertinent, [See PERTINENT]
• Imperturbable, [See PERTURB_and_STOICAL]
• Impervious, [See PERVIOUS]
• Impetrate
• Impetuous, [See HASTY]
• Impiety, [See PIETY]
• Impignorate, [See PAWN]
• Impinge, [See IMPACT]
• Impious
• Implacable, [See PLACABLE]
• Implant, [See PLANT]
• Implement
• Impletion
• Implicate
• Implication, [See IMPLICATE]
• Implicit
• Implied, [See IMPLICIT]
• Implore, [See ENTREAT]
• Imply
• Impolite, [See POLITE]
• Impolitic, [See POLITIC]