Nebulous [neb·u·lous] adj. 1. Lacking definition or definite content. 2. Lacking definite form or limits; vague. “The test results were nebulous and determined to be unusable.”

Exacerbate [ex·ac·er·bate] transitive verb.  To make more violent, bitter, or severe; to irritate or make worse. “The continued delays were greatly exacerbated by the lack of workers on the project.”

Temporal [tem·po·ral] adj.  Relating to, or limited by time. Lasting only for a time; not eternal.  Also: fleeting, passing, momentary, temporary, transient, short-lived. “The beneficial effects of the loan were temporal.”

Pragmatic [prag·mat·ic] adj.  More concerned with practical results than with theories and principles. “The CEO used a pragmatic approach to making his business a success.”

Diminutive [di·min·u·tive] adj. Extremely small in size; tiny. A very small person or thing. “Although diminutive in stature, they were a formidable opponent;” “A diminutive report.”

Laborious [la·bo·ri·ous] adj.  Hard-working; industrious. Marked by or requiring long, hard work. “It was a laborious project, but they still kept it under budget.”

Altruism [al·tru·ism] n.  Unselfish concern for the welfare of others; selflessness.  (also ‘Altruistic’). “Despite his miserly demeanor, his life is driven by Altruism.” “Altruistic motives.”

Copious [co·pi·ous] adj.  Large in quantity; abundant. Abounding in matter, thoughts, or words; wordy.  “He took copious notes during the business meeting.”

Pugnacious adj. 1. Quarrelsome or combative in nature; belligerent. 2. Expressing an argument or opinion very forcefully. “Rather than maintaining a calm demeanor, his boss was quite pugnacious.”

Austere [aus·tere] adj. 1. Markedly simple without adornment or ornamentation. “An austere office;” “An austere writing style.” 2. Strict or stern in appearance or manner. “He was an austere movie critic.”