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Search Result for "rarefied": 
Wordnet 3.0

ADJECTIVE (2)

1. having low density;
- Example: "rare gasses"
- Example: "lightheaded from the rarefied mountain air"
[syn: rare, rarefied, rarified]

2. of high moral or intellectual value; elevated in nature or style;
- Example: "an exalted ideal"
- Example: "argue in terms of high-flown ideals"- Oliver Franks
- Example: "a noble and lofty concept"
- Example: "a grand purpose"
[syn: exalted, elevated, sublime, grand, high-flown, high-minded, lofty, rarefied, rarified, idealistic, noble-minded]


The Collaborative International Dictionary of English v.0.48:

Rarefy \Rar"e*fy\ (r[a^]r"[-e]*f[imac]; 277), v. t. [imp. & p. p. Rarefied (r[a^]r"[-e]*f[imac]d); p. pr. & vb. n. Rarefying (r[a^]r"[-e]*f[imac]`[i^]ng).] [F. rar['e]fier; L. rarus rare + -ficare (in comp.) to make; cf. L. rarefacere. See -fy.] To make rare, thin, porous, or less dense; to expand or enlarge without adding any new portion of matter to; -- opposed to condense. [1913 Webster]
WordNet (r) 3.0 (2006):

rarefied adj 1: having low density; "rare gasses"; "lightheaded from the rarefied mountain air" [syn: rare, rarefied, rarified] 2: of high moral or intellectual value; elevated in nature or style; "an exalted ideal"; "argue in terms of high-flown ideals"- Oliver Franks; "a noble and lofty concept"; "a grand purpose" [syn: exalted, elevated, sublime, grand, high-flown, high-minded, lofty, rarefied, rarified, idealistic, noble-minded]
Moby Thesaurus II by Grady Ward, 1.0:

94 Moby Thesaurus words for "rarefied": adulterated, air-built, airy, attenuate, attenuated, boyish, chimerical, clannish, cliquish, cloud-built, cut, dainty, delicate, diaphanous, dilute, diluted, dreamlike, elevated, esoteric, ethereal, exalted, exclusive, fanciful, fatuitous, fatuous, fine, fine-drawn, finespun, flimsy, frail, gaseous, gauzy, girlish, gossamer, gossamery, gracile, high, illusory, imaginary, insubstantial, lacy, lean, light, lofty, misty, noble, papery, phantomlike, private, rare, reduced, scant, scanty, select, shadowy, slender, slenderish, slight, slight-made, slim, slimmish, slinky, small, sparse, spirituous, sublime, subtile, subtle, svelte, sylphlike, tenuous, thin, thin-bodied, thin-set, thin-spun, thinned, thinned-out, thinnish, threadlike, uncompact, uncompressed, unreal, unsubstantial, vague, vaporous, wasp-waisted, watered, watered-down, watery, weak, willowy, windy, wiredrawn, wispy