bodyguard; bouncer; bar (on a door); bolt; stick or pole used for self-defence
unsafe; insecure; careless; dangerous; incautious; imprudent
unsafe; insecure; careless; dangerous; incautious; imprudent
you can never be too careful; you can't be too cautious; better safe than sorry
you can never be too careful; you can't be too cautious; better safe than sorry
be careful about fire; watch out for fire
very cautious (watchful, vigilant); taking every possible precaution
caution is the best policy