constant

Meanings

1. 1
   adj

   steadfast in purpose or devotion or affection

   We are constant in adherence to our ideals.

2. 2
   adj

   unvarying in nature

   maintained a constant temperature

3. 3
   noun

   a number representing a quantity assumed to have a fixed value in a specified mathematical context

   the velocity of light is a constant

4. 4
   adj

   Consistently recurring over time; persistent.

   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.

5. 5
   adj

   Steady in purpose, action, feeling, etc.

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

6. 6
   adj

   Firm; solid; not fluid.

   If […] you mix them, you may turn these two fluid liquors into a constant body.

7. 7
   adj

   Consistent; logical.

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

8. 8
   adj

   Bounded above by a constant.

   constant time   constant space

Etymology

From Middle English constant, from Old French constant, from Latin constantem, accusative of constans, from cōnstāre (“to stand firm”). Displaced native Old English singal.