Definitions for: Precautionary

[adj] taken in advance to protect against possible danger or failure; "gave precautionary advice"; "I would take precautionary steps to keep him away"

Webster (1913) Definition: Pre*cau"tion*a*ry, a.
Of or pertaining to precaution, or precautions; as,
precautionary signals.

Synonyms: precautional, preventative, preventive