difficult to understand
The abstruse mathematical theorem required years of study to understand.
Vocabulary like abstruse 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.
wretched; of the most contemptible kind
scrape; wear away
shorten; reduce in scope while retaining essential elements
run off; run away; usually includes taking something or somebody along
release from blame; grant remission of a sin to
take in or soak up
say no; refrain from voting
restraining; sparing in consumption of especially food and drink
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