real or tangible
Halstead presented no concrete evidence of any Marxist motivation among the Museum's scientists — Phillip E Johnson
specific or particular
concrete proposals
characterized by or belonging to immediate experience of actual things or events
said of a noun: naming a thing rather than a quality, state, or action
concretely adv
concreteness noun
[Middle English, in the sense ‘coalesced’, from Latin concretus, past part. of concrescere to grow together, from con- + crescere to grow]