Premature/ˌpriːməˈtʃʊr,ˌpriːməˈtʊr/ Definition 1 of 3Pro Tip 1/3Unexpected Timing Use 'premature' to show something occurred sooner than planned or anticipated. His premature departure left us understaffed. Pro Tip 2/3Not Fully Ready Describes actions or events that needed more time to develop fully or properly. Launching the product now seems premature. Pro Tip 3/3Negative Connotation Often implies a negative outcome or dissatisfaction with the early occurrence. Premature celebration turned to disappointment.