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weighty

weight·y

weighty

 
pronunciation:
weI ti
part of speech: adjective
inflections: weightier, weightiest
definition 1: heavy.
These are weighty coins.
synonyms:
heavy, hefty, ponderous
antonyms:
light, weightless
similar words:
ample, big, massive
definition 2: troublesome; oppressive.
Caring for her aunt had become a weighty burden.
synonyms:
onerous, troublesome
similar words:
bothersome, burdensome, thorny, vexatious, worrisome
definition 3: having important or serious consequences.
weighty matters
synonyms:
grave, important, serious
antonyms:
trivial, unimportant
similar words:
big, consequential, critical, great, heavy, imperative, momentous
definition 4: authoritative; influential.
a weighty opinion
synonyms:
authoritative, influential
antonyms:
weak
similar words:
persuasive, potent
derivations: weightily (adv.), weightiness (n.)