soft in the head
Mentally deficient; also, silly, foolish. For example, He’s nice enough but a bit soft in the head. The soft in this idiom, first recorded in 1775, alludes to a weakness in mental capacity.
- Soft iron
noun 1. iron that has a low carbon content and is easily magnetized and demagnetized with a small hysteresis loss (as modifier): a soft-iron core
adjective 1. somewhat or relatively soft.
- Soft job
An easy job or task, as in He really has a soft job—his assistants do nearly all the work. This colloquial expression uses soft in the sense of “involving little or no hardship or discomfort.” It was first put as soft employment in 1639.
noun, Computers. 1. any key on a keyboard, as a function key, that can be programmed.