casual
Definitions
Relaxed and unconcerned; not formal or serious.
Occurring by chance or without intention.
Suitable for everyday use rather than formal occasions.
Examples
The dress code for the office party is strictly casual.
We had a casual conversation about our plans for the weekend.
He made a casual remark that ended up offending several people.
Synonyms
informal relaxed laid-back unceremonious easygoing offhand nonchalant