Hovering and Formidable

(p.pr.&vb.n.) of Hover.

(DoD) A self-sustaining maneuver whereby a fixed, or nearly fixed, position is maintained relative to a spot on the surface of the Earth or underwater.

adjective

• Extremely impressive in strength or excellence.
  • usage: "a formidable opponent"; "the challenge was formidable"; "had a formidable array of compositions to his credit"; "the formidable army of brains at the Prime Minister's disposal"
• Inspiring fear.
  • usage: "the formidable prospect of major surgery"; "a tougher and more redoubtable adversary than the heel-clicking, jackbooted fanatic- G. H. Johnston; "something unnerving and prisonlike about high grey wall"
  • synonyms: redoubtable, unnerving

(a.) Exciting fear or apprehension; impressing dread; adapted to excite fear and deter from approach, encounter or undertaking; alarming.