Completely
Completely adverb - With attention to all aspects or details.
Usage example: an allegation that was completely investigated and found to be groundless
Extensively and completely are semantically related in entirely topic. In some cases you can use "Extensively" instead an adverb "Completely", when it comes to topics like at length.
Extensively
Extensively adverb - To a large extent or degree.
Completely and extensively are semantically related in at length topic. You can use "Completely" instead an adverb "Extensively".
Mutual synonyms
Related pairs
- very and completely
- very and extensively
- greatly and completely
- greatly and extensively
- extremely and completely
- extremely and extensively
- well and completely
- well and extensively
- quite and completely
- quite and extensively
- altogether and completely
- altogether and extensively
- fully and completely
- fully and extensively
Both words in one sentence
- It turns out Sakuya rigged the door extensively, but completely neglected the windows.
Source: Too Clever by Half -
Zeppelins, airships with external frames and internal cargo spaces, have almost died out completely in the military, but they were used extensively in the past, until Hydrogen gave Zeppelins bad rap.
Source: Useful Notes / Plane Spotting - Completely averted later; he appears (stylized) in a flashback during the season four finale, he's depicted (again stylized) in Three's a Crowd, and he's shown extensively in the comics.
Source: He Who Must Not Be Seen
Cite this Source
Extensively and Completely. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/completely/extensively
Completely & Extensively. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/completely/extensively>.
Extensively or Completely. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/completely/extensively.
Google Ngram Viewer shows how "completely" and "extensively" have occurred on timeline