What is Synonym- Synonym is a word that has the same or nearly the same meaning as another word. | Alphabetical List of Useful Synonyms | Advanced and daily used English synonyms | Sample This: ABSTRUSE – difficult to understand ---- Synonyms or Similar Words for ‘Abstruse’ -- arcane / garbled / inarticulate / incoherent / incomprehensible / indecipherable / inexplicable / obscure / rarefied / unfathomable / unintelligible / unplumbed | ANXIOUSLY – thinking about unpleasant things and feeling unhappy and afraid ---- Synonyms or Similar Words for ‘Anxiously’ -- agitatedly / apprehensively / awfully / dreadfully / edgily / fearfully / fretfully / fussily / intolerably / nervously / restlessly / uncomfortably / uneasily / worriedly