Synonyms and Antonyms of weighty
1
having a matter of importance as its topic
- interrupted a weighty discussion with a silly question
big, consequential, eventful, important, major, material, meaningful, momentous, portentous, significant, solid, substantial
frivolous, insignificant, lite, little, Mickey Mouse, minor, silly, slight, small, trivial, unimportant
2
having great meaning or lasting effect
- choosing a college is a weighty decision
big, consequential, earth-shattering, earthshaking, eventful, historic, important, major, material, meaningful, momentous, monumental, much, significant, substantial, tectonic
decisive, fatal, fateful, strategic
earnest, grave, heavy, serious, sincere
distinctive, exceptional, impressive, outstanding, prominent, remarkable
valuable, worthwhile, worthy
distinguished, eminent, great, illustrious, noble, notable, noteworthy, outstanding, preeminent, prestigious
famous, notorious, renowned
all-important, central, critical, crucial, essential, key, pivotal, seminal, vital
inconsequential, inconsiderable, insignificant, little, minor, negligible, slight, small, trifling, trivial, unimportant
3
having great weight
- lifted the weighty sack and wondered what was in it
airy, ethereal, feathery, fluffy, gossamer, gossamery
flimsy, insubstantial, slight
lightweight, undersized (also undersize), underweight
ultralight, ultralightweight
4
not joking or playful in mood or manner
- the police office looked at me with a rather weighty expression
earnest, grave, humorless, no-nonsense, po-faced [British], sedate, serious, severe, sober, sobersided, solemn, staid, uncomic, unsmiling
