adj. 25B6; adjective
the film is unfit for children 007C; unfit for duty : UNSUITABLE, unsuited, inappropriate, unequipped, inadequate, not designed; incapable of, unable to do something, not up to, not equal to; informal not cut out for, not up to scratch.
I am unfit : UNHEALTHY, out of condition/shape, in poor condition/shape.
suitable.