| 영단어 | 라틴어 표현 |
| ugly | turpis |
| ulcer | vomica |
| unaccompanied | incomitatus |
| unaccustomed | insolita |
| unaccustomed /unusual | insolitus |
| unadulterated | incontaminatus, putus |
| unaffected | simplex |
| unaided | sponte |
| unanticipated | insperatus |
| unavenged | inultus |
| unavoidable | necesse |
| unaware | insciens |
| unbelievable | incredibilis |
| unbend | retendo |
| unbending | ferreus |
| unbreakable | infragilis |
| unbridled | effrenus, infrenis infrenus |
| unburied | inhumatus |
| uncertain | hesito (haesito), incertus |
| unchangeable | incommutabilis |
| unchanging | constans |
| unchecked | licens, effrenus |
| unchecked /(mil.) light.armed | expeditus |
| uncivil | inhumanus |
| unclean | immunda |
| uncomfortable / disadvantage | incommoditas |
| uncommon | insolitus |
| uncommon /far apart /thin | rarus |
| uncommonly | mire, rare |
| uncommonness | eximietate |
| unconquer | invictus |
| unconquerable | inexpugnabilis, invictus |
| unconsumed | inconsumptus |
| uncorrected | incorrectus |
| uncorrupted | incorruptus |
| uncultivated | rudis |
| uncultivated / unpolished | incultus |
| uncured | incuratus |
| undamaged /complete | integer |
| unddistinguished | inglorius |
| undecided | irritus |
| undefeated | invictus |
| under | inferus, sub |
| under /(time) later than | infra |
| under an obligation | obligatus |
| under compulsion | coactu |
| under oath | iuratus |
| undergo | perfero pertulit |
| underneath | subter supter |
| underneath /to the south | infra |
| understand | agnosco, video vidi visum, conspicio, scio, teneo |
| understand/ upset | verto |
| understanding | intempestivus |
| undertake | coepto, ineo, promitto, adeo |
| undertaker | vespillo |
| undertaking | commissum, orsus |
| undertaking / first few words | orsa |
| undertook | coepi |
| undeservingly | immerito |
| undiminished | inconsumptus |
| undistinguished | modicus |
| undisturbed / neutral / quiet | quietus |
| undomesticated | efferus |
| undoubted | certus |
| undoubtedly | nimirum |
| undulate /to flood | undo |
| uneasiness | sollicitudo |
| uneasy | sollicitus |
| unequal | iniquus |
| unexpected | repens, subitus, insperatus |
| unexpectedly | repente, subito |
| unexplainable | inedicabilis |
| unfair | iniquus, iniustus |
| unfaithful | infidelis |
| unfavorable | importunus |
| unfeeliing | ferreus |
| unfinished | inchoatus, infectus |
| unfit | indignus |
| unfit for man or beast | inhabitabilis |
| unfixed | irritus |
| unfortunate | miser, infortunatus |
| unfruitful | infelix, infructuosus |
| ungrateful | ingratus |
| ungratefully | ingrate ingratiis ingratis |
| unhappily | infeliciter |
| unhappy | infortunatus |
| unharmed | incolumis |
| unhealed | incuratus |
| unhurt | integer |
| unimpeded | expeditus, licens |
| unimproved | incorrectus |
| uninhabitable | inhabitabilis |
| uninitiated | profanus |
| uninjured | incolumis |
| uninterrupted | continuus, perpetuus |
| union | congregatio, conventus |
| unique | singularis |
| unite | iungo iunxi iunctum, contraho |
| unite /comprehend | comprehendo |
| united | iunctus |
| universe | universitas, mundus, universum |
| unjust | iniquus, iniustus |
| unjustifiably | immerito |
| unkempt | incomptus |
| unknowing | insciens |
| unknown | incognitus, incompertus, ignotus |
| unlamented | infletus |
| unless | nisi |
| unlike | dissimilis, diversus |
| unlimited | infinitus |
| unlooked for | insperatus |
| unlucky | infortunatus |
| unmanageable | inhabilis |
| unmixed | putus |
| unmotivated | desidiosus |
| unmourned | infletus |
| unmoved | immotus |
| unnatural | prodigiosus |
| unnatural thing | prodigium |
| unnecessary | supervacuus |
| unofficial | privatus |
| unpassable | impervius |
| unpatriotic /wicked | impius |
| unperceived /unknown | imperceptus |
| unplanned | inconditus |
| unpleasant | incommodo, ingratus |
| unpleasantness | ruta |
| unpolluted | incontaminatus |
| unproduction | infructuosus |
| unproductive | infelix, inefficax, sterilis |
| unpropitious | laevus levus |
| unpunished | inultus, impunitus |
| unravel | extrico |
| unrelated | extrarius |
| unreliable/ flighty | volaticus |
| unrestrained | effrenus, impunitus, licens |
| unrestricted | liber libera; liberum |
| unrewarded | inhonoratus |
| unroll | explico |
| unseemly | dedecor |
| unshaken | inconcussus |
| unstrained / untuned | incontentus |
| unstretched | incontentus |
| unsuiited | inhabilis |
| unsuitable | importunus |
| unsupportably | intolerabiliter |
| unsure | incertus |
| untainted | incorruptus |
| untamed | indomitus, ferus, efferus |
| untamed spirit /arogance | ferocitas |
| untasted | ingustatus |
| untended | incuratus |
| untie | solvo |
| until | insquequo, dum, donec |
| until now | etiamnun |
| untilled | incultus |
| untouched | integer |
| untrimmed / rude | incomptus |
| untru | infidus |
| untrue | infidelis |
| unusual | novus, insolita |
| unwavering | constans |
| unwell | aegrus |
| unwept | infletus |
| unwilling | invitus |
| unwillingly | ingrate ingratiis ingratis |
| unworked /not done | infectus |
| unworried | securus |
| unworthy | indignus |