libellous li·bel·lous uncommon uk adjective 1. (used of statements) harmful and often untrue; tending to discredit or malign Synonymscalumniatorycalumniousdefamatorydenigrativedenigratingdenigratorylibelousslanderous Similarharmful WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
