brain; mentor, master, mastermind, luminary, expert, authority; bookworm, bibliophile, highbrow, (collectively) intelligentsia.
thinking, adj. 1. rational, reasoning, reasonable, sensible, cerebral; logical, practical, pragmatic; intelligent, knowing, ratiocinative, percipient, perceiving; analytic, ideational, philosophical, sophic; speculative, imaginative.
2. reflective, contemplative, cogitative, cogitating, meditative, meditating, musing, pondering; reflecting, ruminant, ruminating, introspective; pensive, thoughtful, concentrating, preoccupied, engrossed, rapt in thought, lost in thought, bemused, Archaic, museful; deliberative, excogitative, lucubratory, studious; conscientious, careful.
-n. 3. reasoning, rationcination, rationalization, intellectualization; cerebration, brainwork, headwork, ideation, cogitation, excogitation; train of thought, association of ideas.
4. thought, logic, reason, judgment; opinion, conjecture, belief, view; conviction, persuasion.
5. contemplation, contemplating, meditation, consideration, rumination, ruminating, brown study, musing, pondering, brooding, mulling over, chewing over, chewing one's cud, wondering; deliberation, deliberating, speculation, speculating, conjecturing.
thinness, n. 1. leanness, spareness, attenuation, skinniness; narrowness, slenderness, slimness, gracili-ty, gracileness, slightness; gauntness, lankness, lankiness, boniness; scrawniness, scragginess, scrubbiness, puniness, runtiness, smallness.
2. sparseness, sparcity, scantness, scareness, scarcity, infrequency, infrequence; scantiness, paucity, insufficiency, inadequacy, inadequateness.
3. flimsiness, insubstantiality, unsubstantiality, weakness, feebleness, frailty, frailness, fragility, fragileness; diaphaneity, diaphanousness, airiness, sheerness, lightness; delicateness, delicacy, fineness, silkiness, gauziness, filminess; translucence, translucency, transparency, transparence, transparentness.
thin*skinned, adj. sensitive, oversensitive, hypersensitive, supersensitive, easily offended; touchy, temperamental, moody; testy, irritable, tetchy, snappish, petulant, irascible; sulky, sullen, resentful; humorless, grumpy, morose; prudish, prim, squeamish, queasy.
thirst, n. 1. thirstiness, Med. polydipsia; dryness, parchedness, dehydration, desiccation.
2. craving, strong desire, eagerness, avidity, lust, lustfulness; desirousness, appetency, appetite, hunger, ravenousness, voracity, voraciousness; rapacity, rapaciousness, greed, greediness, cupidity, avarice, graspingness; longing, wish, wishing, desideration, want, wanting; yearning, hope, hoping, pining, sighing; hankering, Inf. yen, Sl. itch, Sl. the hots; fancy, fancying, coveting, covetousness.
-v. 3. feel thirst, be thirsty, crave [s.t.] to drink; be dry, be parched, be dehydrated, be desiccated.
4. desire, crave, hunger for, have a strong desire for; lust after, burn for, pant for, be wild or mad about, Sl. have the hots for, Inf. letch after; wish for, long for, desiderate, want; yearn for, hope for, care for, pine for, sign for; hanker after, have a yen for, covet, fancy, have a fancy for, have an eye to, set one's heart on.
thirsty, adj. 1. athirst, craving [s.t.] to drink; needing moisture, dry, droughty, parched, dehydrated, desiccated.
2. desirous, desiring, eager, avid, fain, longing, yearning, desiderative, hankering for, Sl. itching for; burning or burning for, Sl. hot for, lusting after, Inf. dying for; greedy, craving, appetitive, hungry, ravenous, voracious, omnivorous; covetous, avaricious, rapacious.