'Precautionary' definitions:

Definition of 'precautionary'

(from WordNet)
adjective
Taken in advance to protect against possible danger or failure; "gave precautionary advice"; "I would take precautionary steps to keep him away" [syn: precautionary, precautional]

Definition of 'Precautionary'

From: GCIDE
  • Precautionary \Pre*cau"tion*a*ry\, a. Of or pertaining to precaution, or precautions; as, precautionary signals. [1913 Webster]