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).

Adjective

(en adjective)

Alert, awake.

Aware.

* , chapter=5

, title= The Mirror and the Lamp , passage=Here, in the transept and choir, where the service was being held, one was conscious every moment of an increasing brightness; colours glowing vividly beneath the circular chandeliers, and the rows of small lights on the choristers' desks flashed and sparkled in front of the boys' faces, deep linen collars, and red neckbands.}}

*

Once again the animals were conscious of a vague uneasiness.

Aware of one's own existence; aware of one's own awareness.

* 1999 , Eckhart Tolle, The Power of Now , Hodder and Stoughton, pages 61–62:

The best indicator of your level of consciousness is how you deal with life's challenges when they come.  Through those challenges, an already unconscious person tends to become more deeply unconscious, and a conscious' person more intensely ' conscious .