impressive Copy link • impressive: perh. grăvis, cf. Cic. de Or. 2, 56, 227, nec apud populum gravior oratio, but the term denotes esp. dignity, elevation of tone, cf. ib. § 228, omnium gravissimus et salsissimus: to be more i. (of a speech), plus habere momenti, Quint. 11, 3, 5. Phr.: i. proofs, magna documenta, cf. Nägels. p. 322: he was an i. speaker, *plurimum valebat ad mentes audientium dicendo permovendas; prae aliis suadendo pollebat.