KEY: Long.
SYN: Protracted, produced, dilatory, lengthy, tedious, prolix,extensive, diffuse, far-reaching.
ANT: Short, curt, curtailed, brief, speedy, quick, concise,condensed.

• Inscroll
• Inscrutable
• Insecure, [See SECURE]
• Insensate
• Insensibility, [See SENSIBILITY]
• Insensible, [See SENSIBLE]
• Inseparable, [See SEPARABLE]
• Insert, [See INTRODUCE]
• Inside
• Insidious
• Insignificant, [See SIGNIFICANT]
• Insincere, [See HARD]
• Insinuate
• Insipid
• Insist
• Insnare
• Insobriety, [See SOBRIETY]
• Insolence
• Insolent
• Insoluble, [See SOLUBLE]
• Insolvable, [See INSCRUTABLE]
• Insolvent
• Inspect
• Inspector, [See INSPECT]
• Inspiration