weighty Synonyms

cogent heavy grievous telling rotund onerous impressive grave momentous corpulent ponderous burdensome obese powerful severe significant ponderable pivotal solemn solid persuasive sounder staid stodgy serious portentous pregnant pressing profound prominent potent recondite relevant porcine resonant portly punishing stressful well-grounded hippo backbreaking heavyweight big league life-and-death Ernst meaningful newsworthy unbearable po-faced unsmiling