adjective

• (obsolete) Standing or resting on something.
• Urgent in dwelling upon anything; persistent in urging or maintaining.
• Extorting attention or notice; coercively staring or prominent; vivid; intense.
• (ornithology) Standing on end: specifically said of the hind toe of a bird when its base is inserted so high on the shank that only its tip touches the ground: correlated with incumbent.