| ADIATHERMANOUS | • ADIATHERMANOUS adj. not permeable by or able to conduct radiant heat. |
| ADVANTAGEOUSLY | • advantageously adv. In a manner which provides an advantage; in an advantageous manner. • ADVANTAGEOUS adv. giving an advantage. |
| AERONAUTICALLY | • aeronautically adv. In a aeronautical manner; with respect to aeronautics or aviation. • AERONAUTICAL adv. relating to aeronautics. |
| AMARANTHACEOUS | • amaranthaceous adj. (Botany) Belonging to the family Amaranthaceae of amaranths and goosefoots. • AMARANTHACEOUS adj. belonging to the family Amarantaceae, also AMARANTACEOUS. |
| ANTIBARBARUSES | • ANTIBARBARUS n. a list of words and sayings to be avoided in the classical usage of a language. |
| ARMAMENTARIUMS | • armamentariums n. Plural of armamentarium. • ARMAMENTARIUM n. the collection of equipment and techniques available to one in a particular field, esp. in medicine. |
| CHATEAUBRIANDS | • chateaubriands n. Plural of chateaubriand. • CHATEAUBRIAND n. a large tenderloin steak usually grilled or broiled and served with a sauce. |
| INTERAMBULACRA | • interambulacra n. Plural of interambulacrum. • INTERAMBULACRUM n. in sea urchins, a radial band between ambulacra. |
| MANUFACTURABLE | • manufacturable adj. Capable of being manufactured. • manufacturable n. Something that can be manufactured. • MANUFACTURABLE adj. that can be manufactured. |
| REACQUAINTANCE | • reacquaintance n. Acquaintance again or anew. • REACQUAINTANCE n. a new acquaintance. |
| SEPTUAGENARIAN | • septuagenarian n. Synonym of seventysomething: a person between 70 and 79 years old. • septuagenarian adj. Of or related to seventysomethings. • SEPTUAGENARIAN n. a person whose age is in the seventies. |
| TURANGAWAEWAES | • TURANGAWAEWAE n. (Maori) the area that is a person's home. |
| UNACQUAINTANCE | • unacquaintance n. The state or condition of being unacquainted; unfamiliarity with something. • UNACQUAINTANCE n. lack of acquaintance. |
| UNMAINTAINABLE | • unmaintainable adj. Not maintainable. • UNMAINTAINABLE adj. not maintainable. |
| UNMATHEMATICAL | • unmathematical adj. Not mathematical. • unmathematical adj. Not inclined toward mathematics. • UNMATHEMATICAL adj. not mathematical. |
| UNTRANSLATABLE | • untranslatable adj. Not able to be translated. • untranslatable n. A word or phrase that is impossible to translate satisfactorily from one language to another. • UNTRANSLATABLE adj. not translatable. |
| VALETUDINARIAN | • valetudinarian adj. Sickly, infirm, of ailing health. • valetudinarian adj. Being overly worried about one’s health. • valetudinarian n. A person in poor health or sickly, especially one who is constantly obsessed with their state of health. |