Also found in: Thesaurus, Medical, Legal, Financial, Encyclopedia.


a.1.Having no support.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Their product showed two and a half times more activity on the basis of equivalent Pt mass for the ORR than the stateof-the-art Pt/C catalyst and five times more activity than the first-generation supportless Pt-black catalyst.
Dublin City are homeless, UCD are supportless and Bray is a home for frustrated Dubliners in the summer.
To the left of this most understated of advertisements is the entrance canopy, a very simple steel structure carrying underneath a plane of beautifully smoothed planks; it is made strong enough to sail, almost supportless, along the front on the boulevard and turn towards the main public entrance.