"shakier" in the adjective sense
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"
3. precarious, shaky
not secure beset with difficulties
"a shaky marriage"
Source: WordNet® (An amazing lexical database of English)
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