Certainly
Both words in one sentence
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He wasn't a real god, just a dangerously delusional and terribly powerful alien psychic, but from the characters' power level, he certainly counts.
Source: Kill the God -
From Hamlet: Queen Gertrude never said "Methinks the lady doth protest too much"; it was actually "The lady doth protest too much, methinks." Which isn't terribly different but is certainly drier.
Source: Beam Me Up, Scotty! -
Not terribly dangerous, but certainly distracting (and a little scary the first time it happens).
Source: Video Game / Ōkami
Cite this Source
Terribly and Certainly. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/certainly/terribly
Certainly & Terribly. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/certainly/terribly>.
Terribly or Certainly. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/certainly/terribly.
Google Ngram Viewer shows how "certainly" and "terribly" have occurred on timeline