More likely to work correctly and consistently, or to be trusted, than another option.
“This brand's washing machines are more reliable — ours has never broken down in five years.”
“The bus service on this route is more reliable than the other one, which is often late.”
Reliability is a common Task 5 comparison point for products, services, or even people (like a contractor or babysitter), so this phrase is essential vocabulary. Use it when arguing that your choice is a safer, more consistent option, and support it with a reason like past experience or reviews to sound credible.
Synonyms: more dependable, more trustworthy, more consistent