an unwelcome intruder
The interloper crashed the party without an invitation.
Vocabulary like interloper 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.
rebellion; organized opposition to authority
abstract; impossible to feel or touch
included; existing as an essential constituent
complete honesty and moral strength
easy to understand
excessive and uncontrolled
forceful; possessing or displaying a distinctive feature to a heightened degree
act together; act towards each other; act together or towards others or with others
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