apparent, appraisable, apprehensible, ascertainable, assessable, calculable, clear, cognizable, comprehensible, computable, conceivable, concrete, detectable, determinable, discernible, discoverable, distinguishable, estimable, evident, fathomable, gaugeable, graspable, knowable, manifest, material, measurable, mensurable, meterable, noticeable, numerable, observable, obvious, palpable, perceptible, plain, ponderable, prehensible, quantifiable, quantizable, real, recognizable, seizable, sensible, solid, substantial, substantive, tangible, understandable, weighable