Open and Underhand

Open

Open adjective - Not known by only a select few.
Usage example: the two boxers have an open dislike for each other

Underhand is an antonym for open.

Nearby Words: opening, openness, opened, opener

Underhand

Underhand adjective - Undertaken or done so as to escape being observed or known by others.
Usage example: the congressman's underhand attempt to slip several pork barrel items into the bill

Open is an antonym for underhand.

Nearby Word: underhanded
Cite this Source
Underhand and Open. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/open/underhand
Open & Underhand. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/open/underhand>.
Underhand or Open. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/open/underhand.
Google Ngram Viewer shows how "open" and "underhand" have occurred on timeline