gravely , seriously , austerely , rigidly , severely .

http://lila-erc.eu/data/lexicalResources/LewisShort/id/LexicalSense/n44040.5_seuere an entity of type: LexicalSense

gravely , seriously , austerely , rigidly , severely . 
gravely , seriously , austerely , rigidly , severely . 

data from the linked data cloud