marked by calm self-control especially in trying circumstances; "a cool negotiator"; "play it cool"; "keep cool"; "remained coolheaded in the crisis"; "one of the most nerveless champions in the history of the tournament"
5
careful
with care and dignity; "walking at the same measured pace"; "with all deliberate speed"
3
safe
free from risk or danger; "a safe trip"; "you will be safe here"; "a safe place"; "a safe bet"
