verb (used with object)
Related formsim·bit·ter·er, nounim·bit·ter·ment, noun
Examples from the Web for imbitter
And thus many are found who are silly enough to imbitter their own lives and the lives of others by such foolish superstitions.The Spirit Land|Samuel B. (Samuel Bulfinch) Emmons
He made the best of things, overlooking the petty matters which some persons allow to wear and imbitter their dispositions.Famous European Artists|Sarah K. Bolton
What would this be but to imbitter his reflections needlessly.
No feeling of remorse stole over her to imbitter the sweets of her triumphant thoughts.Daisy Brooks|Laura Jean Libbey