1. Incapable of being checked or restrained

See also: difficult, unmanageable

• interrupted
• interrupted fern
• interrupter
• interruption
• interscholastic
• interschool
• intersect
• intersectant
• intersecting
• intersection
• intersection point
• intersectional
• intersex
• intersexual
• interspace
• interspecies
• interspecific
• interspersal
• intersperse
• interspersion
• interstate
• Interstate Commerce Commission
• interstate highway
• interstellar
• interstellar medium