bitter _adjective

1-) having or causing strong feelings of anger, unhappiness, or disappointment

VERBS

feel
・Patsy feels very bitter about losing her job.

sound
・Howard was trying hard not to sound bitter.

remain
・She remained bitter about their divorce for many years.

ADVERBS

increasingly
・He became increasingly bitter about what had happened.

NOUNS

battle, dispute 
・He was involved in a bitter dispute with his former employer.

fight, struggle 
・There was a bitter struggle between them for control of the company.

debate 
・The country now faces a bitter debate over the issue of abortion.

disappointment
・The result was a bitter disappointment for us.

blow 
・His death was a bitter blow to her.

memory 
・She had bitter memories of her relationship with Alan.

rival
・The two businessmen are bitter rivals.

PREPOSITIONS

about
・He was still bitter about the way he had been treated.

PHRASES

know/learn/find out sth from bitter experience
・Jane had learned from bitter experience that love doesn’t always last.

bitter and twisted 
・You’ll end up bitter and twisted if you don’t learn to forgive.

2-) having a strong taste which is not sweet

NOUNS

taste
・The medicine had a bitter taste.

orange, lemon
・Bitter oranges are good for making marmalade.