Adjective weighty has 5 senses
- weighty - having relatively great weight; heavy; "a weighty load"; "a weighty package"
Antonym: weightless
- grave, grievous, heavy, weighty - of great gravity or crucial import; requiring serious thought; "grave responsibilities"; "faced a grave decision in a time of crisis"; "a grievous fault"; "heavy matters of state"; "the weighty matters to be discussed at the peace conference"
Antonym: unimportant (indirect, via important)
- weighty - weighing heavily on the spirit; causing anxiety or worry; "weighty problems"
Antonym: light (indirect, via heavy)
- corpulent, obese, weighty, rotund - excessively fat; "a weighty man"
Antonyms: thin, lean (indirect, via fat)
- cogent, telling, weighty - powerfully persuasive; "a cogent argument"; "a telling presentation"; "a weighty argument"
Antonyms: forceless, unforceful, weak (indirect, via forceful)
,