Spanish Phrase
No lo entendí bien.
Meaning
Literally, 'I didn't understand it well.' It conveys that the speaker heard or read something but the comprehension was incomplete or unclear.
When to use
Use this phrase after a lecture, a conversation, a video, or any spoken/written material that left you confused. It’s a polite way to signal that you need clarification or a repeat.
✦Grammar Breakdown
Noloentendíbien
Negation (No)
Place 'no' before the verb to make the sentence negative.
Direct object pronoun (lo)
'Lo' replaces a masculine singular object that has already been mentioned.
Preterite of entender (entendí)
The preterite form 'entendí' expresses a completed action in the past.
Adverb of manner (bien)
'Bien' modifies the verb, indicating the quality of the understanding.
🗨In Conversation
¿Puedes repetir la explicación, por favor?
Can you repeat the explanation, please?
No lo entendí bien.
I didn't understand it well.
✕Common Mistakes
No lo entiendo bien.
Use the preterite 'entendí' for a past event; 'entiendo' is present tense.
No entendí bien.
Omitting the pronoun 'lo' loses the reference to the specific thing you didn’t understand.
No lo entendí muy bien.
While not wrong, adding 'muy' changes the nuance; learners often over‑use it when a simple 'bien' is enough.
↔Alternatives
No lo comprendí bien.
I didn't comprehend it well.
No lo capté bien.
I didn't catch it well.
No lo entendí del todo.
I didn't understand it completely.
Cultural Tip
In many Spanish‑speaking countries it’s considered courteous to ask for clarification rather than just saying you didn’t understand. Adding a softener like '¿Podrías explicarlo otra vez?' shows respect and keeps the conversation friendly. Also, remember that the direct object pronoun 'lo' is required when the thing you didn’t understand has already been mentioned.