Adjective

(en adjective)

Unchanged through time or space; permanent.

Consistently recurring over time; persistent.

* {{quote-magazine, date=2013-11-16, volume=409, issue=8862, magazine=(The Economist), author=Schumpeter

, title= The mindfulness business , passage=The constant pinging of electronic devices is driving many people to the end of their tether. Electronic devices not only overload the senses and invade leisure time. They feed on themselves: the more people tweet the more they are rewarded with followers and retweets.}}

Steady in purpose, action, feeling, etc.

* Sir (Philip Sidney) (1554-1586)

Both loving one fair maid, they yet remained constant friends.

* (William Shakespeare) (1564-1616)

I am constant to my purposes.

* (John Dryden) (1631-1700)

His gifts, his constant courtship, nothing gained.

Firm; solid; not fluid.

* (Robert Boyle) (1627-1691)

Ifyou mix them, you may turn these two fluid liquors into a constant body.

(obsolete) Consistent; logical.

* Shakespeare, Twelfth Night IV.ii

I am no more mad than you are: make the trial of it with any constant question.

Adjective

(en adjective)

Having traits or characteristics in common; alike, comparable.

*

*:So this was my future home, I thought! Certainly it made a brave picture. I had seen similar ones fired-in on many a Heidelberg stein. Backed by towering hills,a sky of palest Gobelin flecked with fat, fleecy little clouds, it in truth looked a dear little city; the city of one's dreams.

* {{quote-magazine, year=2013, month=May-June, author= Charles T. Ambrose

, title= Alzheimer’s Disease , volume=101, issue=3, page=200, magazine=(American Scientist) , passage=Similar studies of rats have employed four different intracranial resorbable, slow sustained release systems—surgical foam, a thermal gel depot, a microcapsule or biodegradable polymer beads.}}

(mathematics) Of geometrical figures including triangles, squares, ellipses, arcs and more complex figures, having the same shape but possibly different size, rotational orientation, and position; in particular, having corresponding angles equal and corresponding line segments proportional; such that one can be had from the other using a sequence of operations of rotation, translation and scaling.