Adjective

(en adjective)

Man-made; of artifice.

* {{quote-magazine, title=A better waterworks, date=2013-06-01, volume=407, issue=8838

, page=5 (Technology Quarterly), magazine=(The Economist) citation , passage=An artificial kidney these days still means a refrigerator-sized dialysis machine. Such devices mimic the way real kidneys cleanse blood and eject impurities and surplus water as urine. But they are nothing like as efficient, and can cause bleeding, clotting and infection—not to mention inconvenience for patients, who typically need to be hooked up to one three times a week for hours at a time.}}

False, misleading.

Unnatural.

Adjective

(en adjective)

Signifying something; carrying meaning.

a significant''' word or sound; a '''significant look

* Sir Walter Raleigh

It was well said of Plotinus, that the stars were significant , but not efficient.

Having a covert or hidden meaning.

Having a noticeable or major effect; notable.

That was a significant step in the right direction.

The First World War was a significant event.

Reasonably large in number or amount.

(statistics) Having a low probability of occurring by chance (for example, having high correlation and thus likely to be related).