igneous rock produced by eruption and solidified on or near the earth's surface; rhyolite or andesite or basalt; "volcanic rock includes the volcanic glass obsidian"
explosively unstable; "a volcanic temper"
relating to or produced by or consisting of volcanoes; "volcanic steam"; "volcanic islands such as Iceland"; "a volcanic cone is a conical mountain or hill built up of material from volcanic eruptions"
so great in size or force or extent as to elicit awe; "colossal crumbling ruins of an ancient temple"; "has a colossal nerve"; "a prodigious storm"; "a stupendous field of grass"; "stupendous demand"
puffed up with vanity; "a grandiloquent and boastful manner"; "overblown oratory"; "a pompous speech"; "pseudo-scientific gobbledygook and pontifical hooey"- Newsweek
lofty in style; "he engages in so much tall talk, one never really realizes what he is saying"
concerned with effect or style of writing and speaking; "a rhetorical question is one asked solely to produce an effect (especially to make an assertion) rather than to elicit a reply"
of or relating to rhetoric; "accepted two or three verbal and rhetorical changes I suggested"- W.A.White; "the rhetorical sin of the meaningless variation"- Lewis Mumford