be unsteady

References in periodicals archive ?
The adverse effects are more than just those related to the energy/efficiency budgets; the separation could be unsteady and 3-dimensional which imposes heavy unsteady loads (including thermal loads) on the structure.
The fluid flow is considered to be unsteady, incompressible and electrically conducting.
She had home help who called in four times a day but she could be unsteady on her feet which was a concern to us as a family," he said.