rack one's brains

as inmull
as inpuzzle
as inruminate
as inthink
as inratiocinate
as inconcentrate

Synonyms for rack one's brains

verb think about seriously

Antonyms for rack one's brains

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

.