1. (adj) preciso -sa - at that precise moment June walked in: en ese preciso momento entró June it weighs three point seven kilos, to be precise: pesa tres coma siete kilos, para ser preciso exact

2. (adj) claro -ra - your instructions weren't at all precise: tus instrucciones no eran nada claras clear

3. (adj) meticuloso -sa - he's very precise in his work: es un trabajador muy meticuloso painstaking