constant

/'kɔnstənt/

Thân thiện

The scientist maintains a constant temperature in the experiment.

Definition

1. Adjective:

   • Unchanging in nature, value, or extent: Describes something that remains the same and does not vary over time or under different conditions.
   • Steadfast in purpose, devotion, or affection: Describes a person who is faithful, loyal, and unwavering in their feelings or commitments.
   • Continuing without interruption; persistent: Describes an action or state that is incessant, perpetual, or unceasing.

2. Noun:

   • A quantity or number that does not change: In mathematics and science, a value that is fixed and does not vary within a given context or equation.

Usage Examples

• Adjective:

  • The experiment requires a constant temperature. (The temperature must remain the same and not change.)
  • She has been a constant friend to me for years. (She has been a loyal and unwavering friend.)
  • The constant noise from the construction site was annoying. (The noise was continuous and unceasing.)

• Noun:

  • In the equation E=mc², 'c' represents the constant speed of light. ('c' is a fixed, unchanging value.)
  • Mathematical formulas often contain constants like π (pi). (These are numbers with fixed values.)

Advanced Usage

• "A constant in one's life": Something or someone that is always present and reliable in a person's life.
  • Amidst all the changes, her family was the one constant in her life.
• "Held constant": (Scientific/Experimental) Kept unchanged during an experiment to isolate the effect of other variables.
  • All other factors were held constant while we measured the pressure.

Variants and Related Words

• Constancy (n): The quality of being unchanging, faithful, or dependable.
  • I admire the constancy of his support.
• Constantly (adv): Continuously over a period of time; always.
  • Technology is constantly evolving.
• Inconstant (adj): The opposite of constant; frequently changing, especially in loyalties or affections.
  • His inconstant behavior made him an unreliable partner.

Synonyms

• Adjective (Unchanging): Invariable, fixed, stable, uniform.
• Adjective (Persistent): Ceaseless, incessant, perpetual, unremitting.
• Adjective (Loyal): Faithful, steadfast, devoted, true.
• Noun: Fixed value, parameter (in specific contexts).

Antonyms

• Adjective: Variable, changing, inconstant, fickle, intermittent.

Related Phrases

• Constant companion: Someone or something that is always with you.
  • Her dog was her constant companion on long walks.
• Constant reminder: Something that continuously makes you think of a particular fact or situation.
  • The old photograph was a constant reminder of happier times.

Học thuật

Adjective

1. uninterrupted in time and indefinitely long continuing
   • the ceaseless thunder of surf
   • in constant pain
   • night and day we live with the incessant noise of the city
   • the never-ending search for happiness
   • the perpetual struggle to maintain standards in a democracy
   • man's unceasing warfare with drought and isolation
   • unremitting demands of hunger
2. steadfast in purpose or devotion or affection
   • a man constant in adherence to his ideals
   • a constant lover
   • constant as the northern star
3. unvarying in nature
   • maintained a constant temperature
   • principles of unvarying validity

Noun

1. a number representing a quantity assumed to have a fixed value in a specified mathematical context
   • the velocity of light is a constant
2. a quantity that does not vary

Từ đồng nghĩa

• ceaseless
• incessant
• never-ending
• perpetual
• unceasing
• unremitting
• changeless
• invariant
• unvarying
• constant quantity
• invariable