casual >> /ˈkæʒuəl/
Definition: [noun] A person who does something irregularly.
Example: a number of casuals became regular customers
Definition: [noun] Clothes or shoes suitable for everyday wear rather than formal occasions.
Example: she designs women's casuals
Definition: [adjective] Relaxed and unconcerned.
Example: she regarded his affairs with a casual indulgence
Definition: [adjective] Not regular or permanent.
Definition: [adjective] Happening by chance; accidental.
Example: he pretended it was a casual meeting
Definition: [adjective] Without formality of style or manner, in particular (of clothing) suitable for everyday wear rather than formal occasions.
Example: a casual short-sleeved shirt