2 adjectives to describe impend

"I do not write this narrative," he says, "from a motive of vanity, but merely to return thanks to God, who has extricated me out of so many trials and difficulties; who likewise delivers me from those that daily impend over me.

The lofty mast impends, the banner waves, 145 The ruffled surge th' incumbent vessel laves; With eager eye he views her destin'd foe Lead to her peaceful shores th' advent'rous prow; Trembling she knelt, with wild disorder'd air, And pour'd with frantic energy her pray'r 150 "Oh, ye avenging spirits of the deep!

2 adjectives to describe  impend