uncannily or threateningly dark or obscure.
Panic-stricken at the thought of losing Wendy, the lost boys had advanced upon her threateningly.
asked Mr. Bates, threateningly.
come into view indistinctly, often threateningly.
"Put back that pistol first," it said threateningly.
The whip cracked threateningly.
She runs at Pilly threateningly, but he eludes her, laughing.
Flowing threateningly toward me over the crest of a hill was a wave of black men draped in weird mustard-colored clothing.
As he moved threateningly forward she shrank (back) from him.
He glared at her threateningly.
He brandished the hook threateningly.
To act threateningly or violently;rage.
More threateningly, a column of ash can rise from the main crater until it cools to the point where it can no longer sustain itself, and collapses.
"Remember mumps," he warned her almost threateningly, and off he went again.