What does tangentially mean?
Tangentially describes an indirect connection or a brief departure from the main subject. In everyday discussion, it often means that a remark or issue is peripheral but not wholly irrelevant: a speaker may mention another topic tangentially to show that it is connected to the central point without making it the main focus. The adverb can also convey movement or contact along a tangent, as in mathematics or physics. Compared with 'incidentally', 'tangentially' is more formal and suggests at least some conceptual connection to the principal subject. It is useful when discussing digressions, secondary relationships, or precise geometric contact, because it distinguishes these situations from an entirely unrelated aside.
adverbIn a tangential or indirect manner, especially when discussing a subject that is only loosely connected with the main topic. It can also mean along a direction tangent to a curve.
- In an indirect, peripheral, or only loosely relevant manner.
- Along a direction tangent to a curve or surface.
"The interview began to drift tangentially into questions about the author's childhood."
"She mentioned tangentially that she had applied for another position."
"The beam strikes the cylinder tangentially rather than passing through its center."
Tangentially means you have stepped away from the main point—but only slightly.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does tangentially come from?
The word ultimately derives from Latin tangere, 'to touch', through the Latin adjective tangentialis, meaning 'of or like a tangent'. English borrowed the related adjective 'tangential', and 'tangentially' was formed from it using the adverbial suffix '-ly'. The Latin root also produced English words such as 'tangent', 'tangency', and 'tangible'.
Related word forms
How tangentially is actually used
In general use, the word often suggests a digression or a connection that is valid but not central. It is more formal than 'incidentally' and may imply that the connection is genuinely relevant, though secondary. In geometry, it has the narrower technical sense of proceeding along a tangent.
Easily confused with tangentially
Tangential is an adjective describing something that is indirect, peripheral, or related to a tangent, whereas tangentially is an adverb describing how such an action or connection occurs.