KEY: Tart.
SYN: Sharp, acid, sour, acidulous, keen, pungent, {[acerbous]?},severe, acrimonious, biting, bitter, harsh, rude, irascible.
ANT: Mellow, sweet, luscious, mild, genial, suave, kindly, unctuous,oily, smooth, bland, blandiloquent, courteous, deferential, polite,ceremonious.

• Indefeasible
• Indefensible, [See DEFENSIBLE]
• Indefinite, [See DEFINITE]
• Indelible
• Indelicate
• Indemnify
• Independent, [See DEPENDENT]
• Indescribable
• Indestructible
• Indeterminate, [See DETERMINATE]
• Indicate
• Indication
• Indict, [See CHARGE]
• Indifference
• Indifferent
• Indigent
• Indigestible
• Indignation
• Indignity
• Indirect, [See STRAIGHT_and_INSTRUCT]
• Indiscernible, [See DISCERNIBLE]
• indiscerptible, [See INDESTRUCTIBLE]
• indiscoverable
• Indiscreet, [See DISCREET]
• Indiscretion