Extensive
Serious
Serious adjective - Not joking or playful in mood or manner.
Extensive and serious are semantically related. Sometimes you can use "Extensive" instead an adjective "Serious".
Nearby Words: seriously, seriousness
Mutual synonyms
Both words in one sentence
-
She was originally meant to have more serious and extensive scarring, including being blinded in one eye and have mobility issues from muscle damage to the leg (similar to House's limp).
Source: Eyes Are Unbreakable -
There a female nonhuman is told this... and then proceeds to have several extensive telepathic merges, with no serious ill effects.
Source: Literature / Sector General -
Heroic Build: Though it may just be a quirk of the artist, Mouse tended to bulk up when he got into a serious fight or was making extensive use of his powers.
Source: Comic Book / The Movement
Cite this Source
Serious and Extensive. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/extensive/serious
Extensive & Serious. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/extensive/serious>.
Serious or Extensive. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/extensive/serious.
Google Ngram Viewer shows how "extensive" and "serious" have occurred on timeline