kiasu adjective 1noun 1forms 3 adjective1 •(informal, disapproving) Afraid to lose out, particularly because one is overly competitive.No wonder the parents acted that way, she said. They were just being kia-su (afraid to lose out). — 1985 noun1 •(informal, disapproving) A kiasu person.Apart from the kiasis and kiasus, there are also Singaporeans at the other end of the scale – the healthcare workers who put their lives at risk. — 2003 formskiasus · more kiasu · most kiasu
