- Abstruse: (adj) Difficult to understand
- Acumen: (n) Keen insight
- Ascertain: (v) Discover
- Cerebral: (adj) Of the brain
- Faculty: (n) Ability
- Obfuscate: (v) Make difficult to understand.
- Ruminate: (v) To think deeply about
- Stymie: (v) To frustrate or thwart
- Surmise: (v) To guess
- Tenet: (n) A principle or belief