Completely
Completely adverb - To a full extent or degree.
Usage example: she waited until we were completely finished before starting the next part
Plain and completely are semantically related In some cases you can use "Plain" instead an adverb "Completely".
Plain
Plain adverb - In an honest and direct manner.
Completely and plain are semantically related in downright topic. Sometimes you can use "Completely" instead an adverb "Plain".
Both words in one sentence
- Most of them occur right in the middle of a story arc, completely contradicting the point of the issue, are completely irrelevent, or just plain bad.
Source: Commitment Anxiety -
However, there are hints here and there of a completely epic story, which the developers just plain ran out of time to complete.
Source: Video Game / Vexx -
Insane — Bob's completely lost his mind, but how can we make that plain to the audience?
Source: Hearing Voices
Cite this Source
Plain and Completely. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/completely/plain
Completely & Plain. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/completely/plain>.
Plain or Completely. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/completely/plain.
Google Ngram Viewer shows how "completely" and "plain" have occurred on timeline