What does thwartwise mean?
Thwartwise is an uncommon English adverb meaning in a transverse direction: across, crosswise, or athwart. It can describe a line, object, movement, or orientation that runs across another rather than parallel to it, and in nautical or older literary contexts it often evokes a course lying across a ship’s path or another line of travel. The defining idea is across or athwart, rather than simply sideways in every situation. Although understandable today, thwartwise sounds formal and antiquated, and ordinary speakers will usually choose crosswise, athwart, or across. It nevertheless adds a distinctive, period flavor to descriptions of routes, arrangements, and objects set diagonally or at right angles. The compound is formed from thwart and the directional suffix -wise, following a pattern also seen in lengthwise and otherwise. Because thwartwise survives mainly in literary, historical, and specialist usage, recognizing it expands awareness of a precise but largely old-fashioned part of the English vocabulary.
adverbIn a direction across or athwart another line, course, or surface; crosswise.
- In or across a transverse direction; crosswise or athwart.
"The fallen tree lay thwartwise across the road, blocking both lanes."
"The fallen tree lay thwartwise across the road, blocking both lanes."
"The boat was held thwartwise to the dock while the workers secured it."
Long before thwart commonly meant “to block,” it meant “across”—and thwartwise preserves that older sense.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does thwartwise come from?
Thwartwise was formed in the early 17th century by combining thwart with -wise, a suffix indicating manner or direction. In this compound, thwart supplies the older sense “across or athwart,” while the related word athwart continues to preserve that basic spatial meaning. Its construction follows the English pattern of lengthwise and otherwise, in which -wise converts a directional or adjectival stem into an adverb.
How thwartwise is actually used
Now rare in ordinary modern English and chiefly encountered in literary, historical, nautical, or other specialized contexts. Crosswise, across, and athwart are more natural contemporary alternatives.