"The stellar atmosphere was filled with swirling clouds of ionized gas and cosmic dust."
In plain English: Stellar means extremely good, amazing, or outstanding.
"The restaurant received stellar reviews from all its customers."
Usage: While literally describing objects made of hot plasma like the sun, stellar is most commonly used as an informal synonym for excellent or outstanding in everyday speech. Use it to praise a person's performance rather than its literal astronomical properties when you mean something is top-notch.
Example Sentences
"The restaurant received stellar reviews from all its customers."adj
"The new team has shown stellar performance in their first month."adj
"Her stellar singing voice captivated the entire audience at the concert."adj
"Our company achieved stellar results thanks to everyone's hard work."adj