unreachable adjective 1noun 1forms 1 adjective1 •Unable to be reached; impossible to attain.[…] read-only attribute that lists the unreachable but uncollectable objects. — 2006 noun1 •A person or thing that cannot be reached.“Brands want to be in front of this audience,” Ms. Bamford said. “Reaching these unreachables, these cord-cutters who don’t want to be fed an ad, is a huge concern.” — 2019 formsunreachables