Approximate
Approximate adjective - Being such only when compared to something else.
Roughly and approximate are semantically related. In some cases you can use "Roughly" instead an adverb "Approximate".
Roughly
Roughly adverb - Close to but not exactly.
Approximate and roughly are semantically related. Sometimes you can use "Approximate" instead an adverb "Roughly".
Mutual synonyms
Both words in one sentence
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The exact timeline isn't entirely clear but most fans approximate the film to be set roughly over the course of a week.
Source: The Night That Never Ends -
Note that "4k" is named after the approximate width in pixels, while 720 and 1080 are named after the height, hence, 4k is roughly twice as big in each dimension as 1080, not four times.
Source: Useful Notes / High Definition -
To top it all off, it can roughly approximate a Motion Capture Mecha by having Kuvira metalbend trackballs to pilot it.
Source: Magitek
Cite this Source
Roughly and Approximate. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/approximate/roughly
Approximate & Roughly. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/approximate/roughly>.
Roughly or Approximate. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/approximate/roughly.
Google Ngram Viewer shows how "approximate" and "roughly" have occurred on timeline