Slightly and Substantially

Slightly

Slightly adverb - By a very small margin.
Usage example: I thought the first one was slightly better

Substantially is an antonym for slightly.

Nearby Word: slight

Substantially

Substantially adverb - For the most part.

Slightly is an antonym for substantially in to a large extent topic.

Cite this Source
Substantially and Slightly. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/slightly/substantially
Slightly & Substantially. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/slightly/substantially>.
Substantially or Slightly. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/slightly/substantially.
Google Ngram Viewer shows how "slightly" and "substantially" have occurred on timeline