We found 4 dictionaries that define the word be lost for words:

General (3 matching dictionaries)

1. be lost for words: Oxford Learner's Dictionaries
2. be lost for words: Cambridge Advanced Learner's Dictionary
3. be lost for words: Longman Dictionary of Contemporary English

Miscellaneous (1 matching dictionary)

4. be lost for words: Idioms

▸ Words similar to be lost for words ▸ Usage examples for be lost for words ▸ Idioms related to be lost for words ▸ Wikipedia articles (New!) ▸ Words that often appear near be lost for words ▸ Rhymes of be lost for words ▸ Invented words related to be lost for words