1. (

• rickety ,
• shaky ,
• wobbly ,
• wonky

) inclined to shake as from weakness or defect; "a rickety table"; "a wobbly chair with shaky legs"; "the ladder felt a little wobbly"; "the bridge still stands though one of the arches is wonky" ;

2. (

• shaky ,
• shivering ,
• trembling

) vibrating slightly and irregularly; as e.g. with fear or cold or like the leaves of an aspen in a breeze; "a quaking bog"; "the quaking child asked for more"; "quivering leaves of a poplar tree"; "with shaking knees"; "seemed shaky on her feet"; "sparkling light from the shivering crystals of the chandelier"; "trembling hands" ;

3. (

• precarious ,
• shaky

) not secure; beset with difficulties; "a shaky marriage" ;