KEY: Inveterate.
SYN: Confirmed, incarnate, ingrained, deep-rooted, chronic,habitual.
ANT: Incipient, undeveloped, unformed.

• Inappreciable
• Inappropriate, [See PROPER]
• Inapt, [See APT]
• Inarticulate
• Inartificial, [See ARTIFICIAL]
• Inattention, [See ATTENTION]
• Inaudible
• Inaugurate
• Inauguration, [See INAUGURATE_and_TERMINATION]
• Inauspicious, [See AUSPICIOUS]
• Inborn, [See CONGENITAL]
• Inbred, [See CONGENITAL]
• Incalculable, [See CALCULATE]
• Incandescence
• Incantation
• Incapable
• Incapacious, [See CAPACIOUS]
• Incapacity, [See CAPACITY]
• Incarcerate
• Incarceration, [See IMPLOSION]
• Incarnadine
• Incarnation
• Incase
• Incautious, [See CAUTIOUS]
• Incendiarism