Englishunadventurous
adjective
he led a leisurely, unadventurous life:
cautious, careful, prudent, chary, circumspect, wary, hesitant, tentative, timid;
conservative, conventional, traditional, unenterprising, unexciting, unimaginative, uncreative, restrained, limited, boring, strait-laced, stuffy, narrow-minded;
informal cagey, square, straight, stick-in-the-mud, uptight.
▷antonyms adventurous, enterprising, imaginative.