(a.) Somewhat thin.

Barmecidal Barmecide Olympian adulterated aeolian aerial aeriform aerodynamic aerostatic aery air-built airish airlike airy alfresco altitudinous animated apparent apparitional ascending asinine asomatous aspiring astral atmospheric attenuate attenuated autistic blasty blowy blustering blusterous blustery bodiless boreal bouncy boyish breezy brisk bubbly buoyant carefree careless casual catchpenny chimeric chimerical cloud-built colossal corky cursory cut dainty debonair decarnate decarnated deceptive degage delicate delusional delusionary delusive delusory dereistic diaphanous dilute diluted discarnate disembodied disregardant disregardful dominating downy drafty dreamlike dreamy easygoing effervescent elevated eminent empty erroneous ethereal exalted expansive exposed exquisite extramundane fallacious FALSE fanciful fantastic fatuitous fatuous favonian feathery fine fine-drawn finespun flawy flimsy flippant fluffy foamy foolish forgetful frail free and easy fresh fribble fribbling frivolous frothy fuming fumy futile gaseous gasified gasiform gaslike gassy gauzy ghostly girlish gossamer gossamery gracile gusty haughty heedless high high-pitched high-reaching high-set high-spirited high-up idealistic idle illusional illusionary illusive illusory imaginary immaterial impalpable imponderable imponderous impractical in the clouds inane inconsiderate incorporate incorporeal indifferent insouciant insubstantial intangible jaunty lacy lazy leger light light as air lighter than vanity lighthearted lightsome lofty mephitic miasmal miasmatic miasmic misleading misty monumental mounting mousse nonmaterial nonphysical nugacious nugatory oblivious occult offhand open-air ostensible otherworldly otiose outtopping overlooking overtopping oxyacetylene oxygenous ozonic papery perfunctory perky phantasmagoric phantasmal phantom phantomlike pneumatic poetic prominent psychic puffy quixotic rare rarefied reckless reeking reeky regardless resilient respectless romancing romantic romanticized roomy seeming self-deceptive self-deluding shadowy shallow silly skyscraping slender slenderish slight slight-made slim slimmish slinky small smoking smoky soaring souffle specious spectral spiring spirited spiritual spirituous squally starry-eyed steaming steamy steep storybook sublime subtile subtle superficial superlative