phrase used to say that an amount is the most possible in a situation: 最多，顶多 The job will take about ten days at the outside.这活儿顶多需要10天左右。 She'll be gone for three weeks at the outside. I should think there's room for three, maybe four people at the outside. The room's occupancy limit is 100 people at the outside. The whole thing should cost a couple hundred pounds at the outside. These things sell for £8 to £9 at the outside. See also