- weighty
- adj1. heavy, hefty, bulky, substantial, dense, ample; big, large, huge, gigantic, titantic, enormous, massive, ponderous, prodigious, mammoth, mighty, colossal, immense; unwieldy, cumbrous, cumbersome, awkward, unmanageable.2. troublesome, burdensome, onerous, oppressive, back-breaking; troubling, thorny, worrisome, worrying; vexatious, bothersome, pestering.3. important, significant, portentous, of great import; consequential, of great consequence, critical, decisive; momentous, heavy, ponderous, pregnant, carrying great weight, of substance; grave, solemn, sober; crucial, urgent, emergent, exigent, pressing, importunate, imperative.4. influential, persuasive, powerful, potent, Literary. puissant, forceful, forcible; effective, effectual, telling, cogent; controlling, leading, guiding.
A Note on the Style of the synonym finder. 2014.