Significant

a. [Lat. significans, p. pr. of significare; It. & Sp. significante; Fr. signifiant. See SIGNIFY.]

1Sense 1. Fitted or designed to signify or make known something; embodying or expressing a meaning; standing as a sign or token; as, a significant word or sound; a significant look.

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

2Sense 2. Deserving to be considered; important; momentous; as, a significant event.

n. That which has significance; a token. [Obs.] “Dumb significants proclaim your thoughts.” Shak.