inquisitorial, -e, adj., inquisitorial.
insaisissable, adj., unseizable; imperceptible; (jur.) not distrainable.
insalubre, adj., insalubrious, unhealthy, unwholesome.
insalubrement, adv., insalubriously.
insalubrité, n.f., insalubrity, unhealthiness, unwholesomeness.
insanité, n.f., insanity.
insatiabilité, n.f., insatiability.
insatiable, adj., insatiable.
insatiablement, adv., insatiably.
insciemment, adv., unwittingly, unknowingly.