weighty

Having considerable weight; heavy. synonym: heavy.

Burdensome; oppressive: synonym: burdensome.

Of great consequence; serious or momentous.

Having great power or influence.

Having considerable weight; heavy; ponderous.

Burdensome; hard to bear.

Important; serious; momentous; grave.

Adapted to affect the judgment or to convince; forcible; cogent.

Grave or serious in aspect or purport.

Authoritative; influential; important.