brain truster

1. 1.

   an expert adviser involved in making important decisions but usually lacking official status

   Synonymsbackroom boy

   Broaderadviser

Questions about brain truster

What does brain truster mean?

brain truster means "an expert adviser involved in making important decisions but usually lacking official status".

What is another word for brain truster?

Close synonyms include backroom boy. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is brain truster a common word?

brain truster is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.