not controlled or limited
unbridled - unrestrained
‘Unbridled’ can be used in both a positive and negative context to express something that is unrestrained. You can talk of unbridled joy in relation to a happy situation, or unbridled misery in the reverse. It can also be a bit of both. If somebody has unbridled ambition, for example, that could be a positive thing for themselves but a negative for those around them.
There was unbridled joy in the house when Jack and Diane announced they were expecting a baby.
Frank’s unbridled ambition means that there is no low he would not stoop to in order to reach the top.
Lucy spoke with unbridled passion as she pitched her product to the potential investors.