Strikingly appropriate or relevant; well suited to the circumstance or in relation to something.
c. 1833–1856, Andrew Carrick, John Addington Symonds (editors), Medical Topography of Bristol, in Transactions of the Provincial Medical and Surgical Association/Volume 2/3,
Medical Topography would be the most apposite title, since it comprehends the principal objects of investigation; ….
Positioned at rest in respect to another, be it side-to-side, front-to-front, back-to-back, or even three-dimensionally: in apposition.
Related, homologous.
noun
(rare) That which is apposite; something suitable.