incomprensible, incomprehensible.
inconsiderado, inconsiderate, thoughtless, illogical.
inconstante, fickle, changeable.
inconveniente, m., objection, difficulty, inconvenience; annoyance; adj., unbecoming, improper.
incorporarse, to straighten up, rise, sit up.
increado, increate, self-existent.
incrédulo, unbeliever, sceptic; adj., incredulous.
incultivable, incapable of cultivation.
incurrir, to incur.
indecisión, f., irresolution.