anom·a·lous 
/əˈnɑ:mələs/ adjective
/əˈnɑ:mələs/ adjective [more anomalous; most anomalous] somewhat formal : not expected or usual
▪ Researchers could not explain the anomalous test results.
▪ Researchers could not explain the anomalous test results.
— anom·a·lous·ly adjective
