difficult to understand
His inscrutable expression revealed nothing about his thoughts.
Vocabulary like inscrutable appears on the Digital SAT in Words-in-Context questions, where you choose the word that fits a passage's meaning and tone. You can also drill this word with vocabulary flashcards.
inherent; not established by conditioning or learning
harmless and safe
create; bring something new to an environment
a new idea or creation
introducing new and creative ideas
unlucky; not opportune
excessive; beyond normal limits
interrogator; a questioner who is excessively harsh
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