inactiveIf you haven’t voted in the last two elections, we consider you inactive and remove you from the electoral roll.
latentMany people in the region have latent tuberculosis.
quiescentformalThe extremist group was politically quiescent but very socially active.
moribundformaldisapprovingThe family business is now moribund.
idleWhile your computer is idle, the screen may dim - this is normal.
fallowTheir manager was nervous, because the band had never gone through such a long fallow period before.