weighty

形容词 weighty:

1. having relatively great weight; heavy
2. powerfully persuasive
   同义词：cogent, telling
3. of great gravity or crucial import; requiring serious thought
   同义词：grave, grievous, heavy
4. weighing heavily on the spirit; causing anxiety or worry
5. excessively fat
   同义词：corpulent, obese, rotund

1. Light grief speaks, the weighty is dumb.
   小悲伤喋喋不休; 大悲伤沉默寡言。
2. A weighty argument.
   有力的辩论

weight.y

adj.（形容词）
weight.i.er,weight.i.est
Having considerable weight; heavy.See Synonyms at heavy
有相当的重量的；重的参见 heavy
Burdensome; oppressive:
难于负担的；压迫的：
例句：
weighty problems.
压迫的问题

Of great consequence; momentous:
重要的；重大的：
例句：
the weighty matters before the delegates at the peace talks.
在和平谈判中摆在代表们面前的重大事宜

Having great power or influence:
有力的，有影响的：
例句：
a weighty argument.
有力的辩论

Solemn; serious:
严肃的；认真的：
例句：
weighty music.
严肃音乐

【引伸】
weight.ily
adv.（副词）
weight.iness
n.（名词）