1. In a manner characterized by shaking or trembling; unsteadily
He shakily picked up the glass with his trembling hands.
Ele tremulamente pegou no copo com as mãos tremendo.
2. In an uncertain, nervous, or anxious manner
She answered the question shakily, her voice uncertain.
Ela respondeu a pergunta com voz tremendo, incerta e nervosa.
3. In an unstable or precarious manner
The company's finances are shakily based on outdated models.
As finanças da empresa estão precariamente baseadas em modelos obsoletos.