1. (

• bitterly

) with bitterness; in a resentful manner; "she complained bitterly" ;

2. (

• bitterly ,

) indicating something hard to accept; "he was bitterly disappointed" ;

3. (

• piercingly ,
• bitterly ,
• bitingly ,
• bitter

) extremely and sharply; "it was bitterly cold"; "bitter cold" ;