inefficiency: ne-efik-o, -iveso; sen-efik-eso; ne-kapabl-eso, ne-kompetent-eso.
inefficient: (machine, etc.) ne-efik-anta, -iva; sen-efika; (lacking power) ne-pov-anta, ne-potenta; (person) ne-kapabla, ne-kompetenta.
inelastic: ne-elastika.
inelegant: ne-eleganta.
ineligible: ne-elekt-ebla.
inept: ne-apta; (stupid) ne-habila, stupida; (incapable) ne-kapabla.
ineptitude: ne-apt-eso; ne-habil-eso; ne-konveno.
inequality: ne-egal-eso; (of a surface) ne-plan-eso, -ajo.
inequitable: ne-equitat-oza, ne-yusta.
ineradicable: ne-extirp-ebla.
inert: inert-a, -ia: -eso.
inestimable: ne-evalu-ebla; ne-kalkul-ebla; ne-mezur-ebla.
inevitable: ne-evit-ebla.
inevitably: (without fail) ne-evit-(ebl)e, sen faliar, sen-falie.
inexact: (of things) ne-exakta; (person) ne-akurata; -ness, -itude: (qual.) -eso, (act) -ajo.
inexcusable: ne-exkuz-ebla.
inexhaustable: ne-exhaust-ebla.
inexorable: ne-exauc-ema (per pregi).
inexpedient: ne-oportuna, des-, ne-avantaj-oza; nekonven-anta.
inexpensive: ne-chera, ne-kust-oza.
inexperienced: sen-experienca, novica.
inexpert: ne-experta, ne-habila.
inexpiable: ne-expiac-ebla.
inexplicable: ne-explik-ebla.
inexplicit: ne-explicita.
inexpressible: ne-expres-ebla.
inexpressive: ne-expres-iva, -ema.
inexpugnable: ne-konquest-ebla.
inextinct: ankore viv-ante.
inextinguishable: ne-exting-ebla.
infallibility: ne-eror-iv-eso, ne-fali-iv-eso
infallible: (not capable of erring) ne-eror-iva; (not liable to err, fail) ne-fali-iva; (certain to take place) infalibla; i. church: ne-eror-iva eklezio.
infamous: (person) infama, mal-fam-oza, sen-honora; (thing) sham-inda , abomininda.
infamy: (qual.) infam-eso; des-honoro; (act) sham-ind-ajo, abominind-ajo.
infancy: infant-eso; (jur.) minor-eso.
infant: (to seven years) infanto, (baby) -eto; (over seven years) puero; -ile: -ala, -atra; -icide: -ocido.
infanta, -e: (Spanish) infante.
infantry: infantrio; -man: -ano, pedo-soldato.
infarct: infarkto.
infatuated, to become: divenar fanatika (od, entuziasm-anto) (pri ulu, ulo); fanatik-eskar; fol-eskar; fatu-eskar; frenezi-et-eskar.
infatuation: (blinda) entuziasmo, am-ego, favor-ego (ad, por).
infect: (also fig.) infektar; -ion: -(ad)o, -eso; -ious: -anta, -iva; (cf. kontagiar; pest-izar).
infelicitious: (unhappy) des-felica (cf. kompatinda; mal-chanc-oza; desfortun-oza; noc-iva).
infelicity: des-felic-eso, desfortuno.
infer: inferar (cf. deduktar; supozar).
inference: infer-o, -ajo; dedukto, -ajo.
inferentially: per dedukto, per infero.
inferior: (social, economic, quality) inferiora, -(ul)o; (lower down in space) infra; (milit.) subaltern-a, -(ul)o, subordin-ita, -ito; -ity: -eso.
infernal: infern-ala, -atra.
inferno: inferno.
infertile: sterila; (ground, inanimate things) ne-fertila; (living beings) ne-fekunda; -tility: -eso.
infest: invadar, inkursar (enemike).
infeudation: feud-igo.
infibulate: fibul-izar.
infidel: ne-kred-anta; -anto, -ero.
infidelity: (unbelief) ne-kred-(ad)o; (unfaithfulness) (qual.) ne-fidel-eso, (act) -ajo.
infiltrate: (tr., intr.) infiltrar; -tion: (act) -(ad)o, (result) -uro.
infinite: infinita, -o; (cf. sen-fina, sen-limita); -ly: (vulg.) sen-fine, extreme; (math.) infinite; -ness, infinitude: (qual.) infinit-eso; (very great number) mult-eg-eso.
infinitesimal: infinitezima, -ala.
infinitive: (gram.) infinitiv-o, -a, -ala.
infirm: (of body) infirma (cf. invalida, debila, kripla); (weak) febla; (of will) hezit-anta, -ema; ne-decid-iva, -ema; -ity: infirm-ajo, -eso; (lack firmness) ne-firm-eso, febl-eso.
infirmary: malad-eyo, fleg-eyo, infirm-erio, invalid-erio.
infix: (gram.) infixo.
inflame: (med.) inflamar; (set fire to) inflamar; brul-igar (kun flamo); acendar; (make ardent or burn) ardor-igar; (fig.) iritar, ecitar; to be i.d: inflam-esar; esar flam-oza; to become i.d: inflam-esar.
inflammable: inflam-ebla, brul-ebla.
inflammation: inflamo, -eso, -uro.
inflammatory: (all senses) inflam-ala, -atra, -anta, -ig-iva; (fig.) incendi-ema.
inflate: inflar (cf. bufar).
inflect: (gram.) inflexar (cf. deklinar, konjugar); (deflect) de-flexar, flex-etar; (the voice) modulacar.
inflection: (gram., geom.) inflexo (cf. flexiono, dezinenco); (deflection) (de-)flex-o, -eso; (of voice) modulac-(ad)o, -uro.
inflexible: (phys. and moral) ne-flex-ebla, rigida.
inflict: aplikar (puniso); impozar (privaco).
inflorescence: infloresenco.
inflow: en-flu-o, (place) -eyo.
influence: influar (ulu, ulo ad ulo); (n.) (exercised) influ-o, (undergone) -eso; undue i.: (jur.) kaptaco.
influential: influanta, -iva.
influenza: grip-o, influenzo; (sick with) -ika, -iko.
influx: en-flu-(ad)o; (biol.) influxo.
inform: (apprise) informar; (instruct) instruktar; (cf. sav-igar; avizar; inquestar; avertar); i. against: denuncar, akuzar.
informal: ne-form-ala, sen-ceremonia, ne-regul-oza.
informality: ne-form-al-eso, -ajo.
information: (given) informo, (received) -eso; (notification) avizo; (instruction) instrukto, (practical) instruciono; (denunciation) denunco; (knowledge about; acquaintance) konoco.
informative: (at the time) inform-anta, (permanently) -iva, instrukt-iva.
informer: (denouncer) denunc-anto, -into, -ero, akuz-anto.
infraction: violaco, des-obedio; kontravenco.
infrequency: rar-eso.
infrequent: rara, ne-ofta.
infringe: violaciar; kontravencar; (upon rights) uzurpar; (a patent) kontrafaktar; -ment: -o, -uro.
infuriate: furi-igar (ulu), -eskar, -igar ulu furi-oza.
infuse: (make an infusion, also fig.) fuzar (cf. inspirar; inkulkar); (pour in) en-varsar.
infusible: ne-fuz-ebla.
infusion: infuz-o, -uro; (pouring) en-, sur-varso.
infusoria: infuzori-o, -i, -aro.
ingathering: rekolt-(ad)o, -ajo.
ingenious: (of things) injeni-oza, bone o habile enjeni-ita; (of persons) injeni-oza, -ema.
ingenuity: injenio, -em-eso; to tax ones i.: (intr.) -ar; (cf. genio, talento).
ingenuous: kandida, naiva, sen-artifica.
ingest: ingestar.
ingle-nook: kamen angulo.
inglorious: sen-gloria; (dishonouring) des-honor-iz-anta.