na-adjective, noun
seeming dangerous; risky-looking; unsteady; clumsy-looking
Describes something that looks or feels dangerous, risky, or unstable. Often used for actions, situations, or people that appear precarious or unreliable.
彼の運転はいつも危なげだ。
His driving always looks dangerous.
そのはしごは危なげで、登るのが怖かった。
That ladder looked unsteady, and I was scared to climb it.
危ない is the basic adjective meaning 'dangerous' or 'risky.' 危なげ adds the suffix げ, which means 'seeming' or 'appearing,' so it focuses on the appearance of danger rather than stating it as a fact.
Formed from the stem of the adjective 危ない (abunai, 'dangerous') plus the suffix げ (ge), which indicates appearance or seeming. The exact historical derivation is straightforward.