infierno, m., hell.
informe, m., investigation, information, "character," [27], 7.
infortunado, da, adj., unfortunate, unhappy, ill-fated.
infortunio, m., calamity, misfortune, [100], 18.
infundado, da, adj., unfounded, groundless.
infundir, v. a., to inspire, to instil.
ingeniero, m., engineer, [20], 16.
ingenio, m., wit, understanding, talent, disposition.
ingenuo, ua, adj., ingenuous, frank, candid.
inherente, adj., inherent, necessary, [87], 9.