Collection, "casual party": A Study of Casual

Relaxed and unconcerned.made or done without much thought or premeditation. done or acting in a desultory way.done or acting without sufficient care or thoroughness.not regular or permanent.employed or established on a temporary or irregular basis.(of a sexual relationship or encounter) occurring between people who are not regular or established sexual partners.happening by chance; accidental.without formality of style or manner, in particular (of clothing) suitable for everyday wear rather than formal occasions.