Mechanical
Mechanical adjective - Done instantly and without conscious thought or decision.
Persistent and mechanical are semantically related. In some cases you can use "Persistent" instead an adjective "Mechanical".
Persistent
Persistent adjective - Continuing despite difficulties, opposition, or discouragement.
Mechanical and persistent are semantically related. Sometimes you can use "Mechanical" instead an adjective "Persistent".
Both words in one sentence
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Killer Robot: The Mechanical Hound, a six legged artificial Super-Persistent Predator which is programmed to hunt down and kill offenders via lethal injection.
Source: Literature / Fahrenheit 451 -
James as well, during the 1976 season - plagued by persistent mechanical problems that caused him to not finish several races, he kept on plugging away until he was near the top of the standings by the final race of the season.
Source: Film / Rush (2013)
Cite this Source
Persistent and Mechanical. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/mechanical/persistent
Mechanical & Persistent. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/mechanical/persistent>.
Persistent or Mechanical. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/mechanical/persistent.
Google Ngram Viewer shows how "mechanical" and "persistent" have occurred on timeline