Added 9 October 2026 solidly adverb Categories: Describing WordsRare Words adverb ! Definition from WordNet 3.1, Princeton University. More about solidly at Wordnik → Where our words come from → As an undiversified whole. the unions voted solidly for Roosevelt With strength and soundness. a solidly built house Related Words: firmlyresolutelyfaststeadfastlysoundlythoroughlystronglysteadilystrongdeeplyrigidlyrobustly Back to today's word