- 1not formal casual clothes (= comfortable clothes that you choose to wear in your free time) family parties and other casual occasions
without care/attention - 2[usually before noun] not showing much care or thought; seeming not to be worried; not wanting to show that something is important to you a casual manner It was just a casual remark—I wasn't really serious. He tried to sound casual, but I knew he was worried. They have a casual attitude toward safety (= they don't care enough).
- 3[usually before noun] without paying attention to detail a casual glance It's obvious even to the casual observer. relationship
- 4[usually before noun] without deep affection a casual acquaintance a casual friendship to have casual sex (= to have sex without having a steady relationship with that partner) by chance
- 5[only before noun] happening by chance; doing something by chance a casual encounter/meeting a casual passerby The exhibition is interesting to both the enthusiast and the casual visitor. The disease is not spread by casual contact. work
- 6[usually before noun] not permanent; not done regularly; not doing something regularly casual workers/labor Students sometimes do casual work in the tourist business. They are employed on a casual basis (= they do not have a permanent job with the company).
not formal
adverb “What did he say about me?” she asked as casually as she could. They chatted casually on the phone. dressed casually in jeans and a T-shirt
noun [uncountable] He was sure that the casualness of the gesture was deliberate.See casual in the Oxford Advanced Learner's Dictionary
Check pronunciation: casual