We found 3 dictionaries that define the word be at a loss:

General (2 matching dictionaries)

1. be at a loss: Cambridge Advanced Learner's Dictionary
2. be at a loss: Longman Dictionary of Contemporary English

Miscellaneous (1 matching dictionary)

3. be at a loss: Idioms

Phrases: to be at a loss, more... ▸ Words similar to be at a loss ▸ Usage examples for be at a loss ▸ Idioms related to be at a loss ▸ Wikipedia articles (New!) ▸ Words that often appear near be at a loss ▸ Rhymes of be at a loss ▸ Invented words related to be at a loss