Definitions: (1) capable of being shaped; flexible(2) having a supple and resilient mind or body; agile; nimble

Synonyms: lithe, pliable, pliant 

Comment: There are two obvious ways to get physically limber: one is stretching and one is yoga. To get mentally limber, read new ideas and communicate. Flex the brain muscles.

Food: The herb Gotu Kola, or Indian Pennywort (Centella asiatica), is said to assist in the transference of the brain’s synaptic connections. When that word is just on the tip of your tongue, or your thoughts are just not flowing smoothly, Gotu Kola might help.