inundar, to inundate.
inútil, useless, needless, unnecessary.
inútilmente, uselessly, in vain.
invadir, to invade.
invencible, invincible, irresistible, unconquerable.
invierno, m., winter.
invisible, invisible.
invitación, f., invitation.
invocar, to invoke.
involuntariamente, involuntarily.