aslant adj. + Add to list UK //ɐslˈɑːnt// aslant Archaic Literary SynonymsEtymology Synonyms aslopeathwartdiagonalobliquelyslantedslantingslopedslopingOriginMEaslant→ENaslant From Middle English aslant (“at an angle, in a curve; from the side, deviously”), from on slante; equivalent to a- + slant.