inestimable

1. ADJ If you describe the value, benefit, or importance of something as inestimable, you mean that it is extremely great and cannot be calculated. 無(wú)法估計(jì)的; 極貴重的[正式] [usu ADJ n]

Human life is of inestimable value. 人的生命是無(wú)價(jià)的。