Significantly
Significantly adverb - In a significant manner.
Without reservation and significantly are semantically related. In some cases you can use "Without reservation" instead an adverb "Significantly".
Without reservation
Significantly and without reservation are semantically related. Sometimes you can use "Significantly" instead an adverb phrase "Without reservation".
Cite this Source
Without reservation and Significantly. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/significantly/without_reservation
Significantly & Without reservation. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/significantly/without_reservation>.
Without reservation or Significantly. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/significantly/without_reservation.
Google Ngram Viewer shows how "significantly" and "without reservation" have occurred on timeline