Synonyms for careful

accurate, alert, attentive, cautious, chary, circumspect, conscientious, detailed, diligent, economical, exact, fastidious, frugal, heedful, industrious, judicious, methodical, meticulous, mindful, observant, painstaking, prudent, punctilious, rigorous, scrupulous, sedulous, sparing, thorough, thoughtful, vigilant, wary, watchful