Meaning of “little” - Learner’s Dictionary

little

adverb us uk /ˈlɪtl/
He does very little during the day.This new discovery illustrates how little we know about early human history.I know very little about the subject.The defeat did little to dent her enthusiasm.The comments did little to increase his confidence.

B2 not much or not enough:

It matters little.
a little-known fact

(Definition of “little adverb” from the Cambridge Learner’s Dictionary © Cambridge University Press)