| Term | Definition |
| quixotic | (adj) 1. (sometimes initial capital letter) resembling or befitting Don Quixote. 2. extravagantly chivalrous or romantic; visionary, impractical, or impracticable. 3. impulsive and often rashly unpredictable. |
| quotidian | (adj) recurring daily, esp. of of attacks of malaria. |
| recapitulate | (verb) 1. to review by a brief summary, as at the end of a speech or discussion; summarize. 2. Biology. (of an organism) to repeat (ancestral evolutionary stages) in its development. 3. Music. to restate (the exposition) in a sonata-form movement. |
| recondite | (adj) 1. dealing with very profound, difficult, or abstruse subject matter. 2. beyond ordinary knowledge or understanding; esoteric. 3. little known; obscure |
| remonstrate | (verb) to say or plead in protest, objection, or disapproval. |
| rubicund | (adj) red or reddish; ruddy |
| redolent | (adj) 1. having a pleasant odor; fragrant. 2. odorous or smelling (usually fol. by of). 3. suggestive; reminiscent (usually fol. by of) |
| repugnant | (adj) 1. distasteful, objectionable, or offensive. 2. making opposition; averse. 3. opposed or contrary, as in nature or character. |
| sanguine | (adj) 1. cheerfully optimistic, hopeful, or confident. 2. reddish; ruddy: a sanguine complexion. 3. (in old physiology) having blood as the predominating humor and consequently being ruddy-faced, cheerful, etc. 4. bloody; sanguinary. 5. blood-red; red. 6. Heraldry. a reddish-purple tincture. (noun) 7. a red iron-oxide crayon used in making drawings |
| sinecure | (noun) 1. an office or position requiring little or no work, esp. one yielding profitable returns. 2. an ecclesiastical benefice without cure of souls |
| sophistry | (noun) 1. a subtle, tricky, superficially plausible, but generally fallacious method of reasoning. 2. a false argument; sophism |
| spurious | (adj) 1. not genuine, authentic, or true; not from the claimed, pretended, or proper source; counterfeit. 2. Biology. (of two or more parts, plants, etc.) having a similar appearance but a different structure. 3. of illegitimate birth; bastard |
| stolid | (adj) not easily stirred or moved mentally; unemotional; impassive |
| supercilious | (adj) haughtily disdainful or contemptuous, as a person or a facial expression |
| subjugate | (verb) 1. to bring under complete control or subjection; conquer; master. 2. to make submissive or subservient; enslave. |
| sesquipedalian | (adj) 1. given to using long words. 2. (of a word) containing many syllables. (noun) such a word. |
| syzygy | (noun) 1. Astronomy. an alignment of three celestial objects, as the sun, the earth, and either the moon or a plane. 2. Classical Prosody. a group or combination of two feet, sometimes restricted to a combination of two feet of different kinds. 3. any two related things, either alike or opposite |