Synonyms and Antonyms of cornerstone
an immaterial thing upon which something else rests
- A concern for basic human rights was the cornerstone of the president's foreign policy.
base, basis, bedrock, bottom, footing, foundation, ground, groundwork, keystone, root, underpinning, warp, warp and woof
anchorage, bed, brace, bulwark, buttress, framework, infrastructure, mount, prop, shore, stay, substratum, substructure, support
assumption, justification, premise (also premiss), presumption, presupposition, rationale, supposition, theory, thesis, warrant
backbone, center, core, cornerstone, eye, focus, heart, hub, kernel, keystone, nucleus, seat
essence, quintessence, soul, touchstone