Progeny [prog·e·ny] n.pl. 1. Something that originates or results from something else; outcome; issue. 2. A result of creative effort; a product.

Causative [caus·a·tive] adj. 1. Indicative that the subject causes an act to be performed or a condition to come into being. “A causative factor of war.”

Ambivalence [am·biv·a·lence] n. 1. Uncertainty or indecisiveness as to which course to follow. 2. The coexistence of opposing attitudes or feelings, such as love and hate, toward a person, object, or idea.

Gratuitous [gra·tu·i·tous] adj. 1. Given or granted without return or recompense; unearned. 2. Unnecessary or unwarranted; unjustified: A gratuitous remark.

Aplomb [a·plomb] n.  Self-confident assurance, skill, and poise – especially in difficult or challenging circumstances.

Arduous [ar·du·ous] adj. 1. Demanding great effort or labor; difficult. “An arduous undertaking.” 2. Testing severely the powers of endurance; strenuous. “A long and arduous process.”

Secular [sec·u·lar] adj. 1. Worldly rather than spiritual. 2. Not specifically relating to religion or to a religious body. “A secular book.”

Oxymoron [ox·y·mo·ron] n.pl. A phrase in which two words of contradictory meaning are used together for special effect, for example, “wise fool” or “to make haste slowly.”

Pervicacious [per·vi·ca·cious] adj. Stubborn, extremely willful, obstinate. “He became quite pervicacious in his old age.”

Accoutrement [ac·cou·tre·ment] n. Additional items of dress or equipment, carried or worn by a person or used for a particular activity. The General dressed for battle in shining accoutrements.”