calculating, cannily, canny, careful, carefully, cautious, cautiously, charily, chary, circumspect, circumspectly, considerate, daintily, dainty, deliberate, delicate, delicately, discreet, fastidious, guarded, guardedly, heedful, hesitant, judicious, leaving out nothing, mindful, nervous, noncommittal, on guard, overlooking no possibility, pawky, politic, prudent, regardful, safe, shy, shyly, slow to act, squeamish, tentative, tentatively, thorough, timid, timidly, timorous, timorously, unadventurous, uncommunicative, undaring, unenterprising, unprecipitate, warily, wary, watchful