1. uncertain, not steady and likely to fall
The noun 'skaky' can mean to literally be shaky or trembling. 'Shaky' usually has a negative connotation as describing something or someone 'unreliable'. If something is 'shaky' it can also refer to something being unsafe, unreliable or liable to break. "The economy was founded on shaky foundations." "That table looks a bit shaky, I wouldn't stand on it if I were you." If you are sick and feeling weak you can tell someone you are feeling 'shaky'.