vs
QUICK ANSWER
"Sin que" is a conjunction which is often translated as "without", and "a menos que" is a conjunction which is often translated as "unless". Learn more about the difference between "sin que" and "a menos que" below.
sin que()
A conjunction is a word that connects words, phrases, clauses, or sentences (e.g., The cat and the dog slept.).
a. without
No puedo llevar a mi novio a ningún lado sin que haga algo vergonzoso.I can't take my boyfriend anywhere without him doing something embarrassing.
a menos que()
A conjunction is a word that connects words, phrases, clauses, or sentences (e.g., The cat and the dog slept.).
