Blubbered is a word that is commonly used to describe someone who is crying uncontrollably. However, there are several synonyms that can be used to describe this state. One option is to use the word "sobbed," which also indicates that the person is crying heavily. Another option is to use the word "bawled," which is similar to blubbered but may imply a louder and more intense crying experience. "Wailed" is another choice, and it indicates a loud, mournful cry or lamentation. "Wept" is a milder synonym that is often used to describe more subdued crying. Overall, there are many words that can be used as synonyms for blubbered to convey different nuances of the crying experience.