Extremely important or essential:
Causing hardship or distress.
Much or large
Hard to handle or deal with as because of size, weight, or complexity; burdensome; unwieldy; clumsy
Not easy to persuade or convince; stubborn.
Requiring serious thought; momentous:
Large enough to fire powerful shells:
Consisting of or making up a large mass; bulky, heavy, and solid:
Troublesome or oppressive; burdensome.
Slow or difficult to manage, especially because of complexity:
The definition of powerful is having a lot of strength, authority or force.
Productive of results; fruitful
Causing great discomfort, damage, or distress:
Solemn means someone or something serious, sincere or impressive.
Consisting of one unalloyed metal throughout; also, containing no more alloy than is necessary to insure hardness
Of considerable worth or value; important
With respect to an experience: exhausting; draining.
Having an effect; forceful; striking
Containing a relatively small amount of a potentially harmful ingredient, such as alcohol, fat, or sodium:
Limited in importance or significance; trivial:
Having relatively small diameter in relation to length
Lacking material substance; insubstantial.
The definition of trivial is insignificant, or of no importance.
Not important; insignificant or petty.
Free from worry, anxiety, trouble, or pain:
Acting, working, or done easily, or in a quick, smooth way; fluent; ready
Of the heavyweight boxing (similar) division.
The definition of corpulent is a person who is fat or obese.
Rich; producing a large income; desirable.
Containing or composed of fat:
Relating to, consisting of, or resembling flesh:
Extremely overweight, especially: weighing more than 20% (for men) or 25% (for women) over their ideal weight determined by height and build; or, having a body mass index over 30 kg/m2.
(Of a person) heavier than what is generally considered healthy for a given body type and height.
Of or resembling swine or a pig:
Large; bulky, thickset; corpulent, fat.
The definition of arduous is a way of describing something that is extremely tiring and difficult.
Requiring great physical exertion
Requiring much effort or attention:
Making severe demands; rigorous:
Requiring more than is reasonable; demanding; exacting
Difficult to undertake, surmount, or defeat:
Lacking in shade; undiminished:
Marked by or requiring long, hard work:
Hard to put up with; causing great discomfort or fatigue
Harsh, severe, or demanding:
Difficult to travel over or through:
Difficult to endure; severe; harsh:
The definition of trying is defined as an irritating person or thing.
The definition of earnest is intense and not playful, or important.
Having or exercising influence
Serious or dire; grave:
Not experiencing the effects of gravity.
Find another word for weighty. In this page you can discover 71 synonyms, antonyms, idiomatic expressions, and related words for weighty, like: critical, hefty, burdensome, considerable, cumbersome, difficult, grave, heavy, important, large and massive.