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Synonyms

simulate

American  
[sim-yuh-leyt, sim-yuh-lit, -leyt] / ˈsɪm yəˌleɪt, ˈsɪm yə lɪt, -ˌleɪt /

verb (used with object)

simulated, simulating
  1. to create a simulation, likeness, or model of (a situation, system, or the like).

    to simulate crisis conditions.

  2. to make a pretense of; feign.

    to simulate knowledge.

    Synonyms:
    counterfeit, pretend
  3. to assume or have the appearance or characteristics of.

    He simulated the manners of the rich.

    Synonyms:
    affect

adjective

  1. Archaic. simulated.

simulate British  

verb

  1. to make a pretence of; feign

    to simulate anxiety

  2. to reproduce the conditions of (a situation, etc), as in carrying out an experiment

    to simulate weightlessness

  3. to assume or have the appearance of; imitate

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adjective

  1. archaic assumed or simulated

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • nonsimulate adjective
  • nonsimulative adjective
  • simulative adjective
  • simulatively adverb
  • simulatory adjective
  • unsimulated adjective
  • unsimulating adjective
  • unsimulative adjective
  • well-simulated adjective

Etymology

Origin of simulate

1400–50; late Middle English (adj.) < Latin simulātus (past participle of simulāre ), equivalent to simul- (variant of simil-, base of similis similar ) + -ātus -ate 1

Explanation

When you simulate something, you imitate it. Hollywood makeup artists can use pencils and gray wigs to simulate old age in a young actor. It can also mean to model — a computer can simulate disaster scenarios in cities. If you really admire someone's calm-under-pressure attitude, you may try to simulate their demeanor. When opening a present, it's polite to simulate surprise and excitement about the gift item, even if you already have it or it is ugly as dirt. Don't try to simulate your parents' signatures on excuse cards, though — signatures are unique to individuals and impossible to simulate perfectly.

Keep Reading on Vocabulary.com

Vocabulary lists containing simulate

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

These accounts simulate trading rather than using real money, and are offered by brokerages including Greenlight, E*Trade and Webull.

From The Wall Street Journal • Apr. 14, 2026

To simulate inflammation, the researchers exposed murine macrophages to lipopolysaccharide, a bacterial component often used in laboratory experiments.

From Science Daily • Apr. 9, 2026

"We are able to simulate any regulatory requirements here," said Hoelter.

From Barron's • Apr. 5, 2026

To simulate microgravity, researchers used a 3D clinostat machine developed by Dr. Giles Kirby at Firefly Biotech.

From Science Daily • Mar. 29, 2026

They found it very difficult to simulate an interrogation for me.

From "Code Name Verity" by Elizabeth Wein