least common denominator (noun) lowest common denominator: lowbrow person or audience
Sinonime: accurate,
all right, always there, authentic, authoritative,
believable, boy scout, convincing, credible, dependable, down home, ethical, exact, fly right, honest, honorable, kosher, level-headed, mature, open, plausible, principled, realistic, responsible, righteous,
rock,
saint, secure, sensible, square, steadfast, straight, there, tried, true, true blue, trustable, trusty, truthful, unfailing, up front, upright, valid, veracious
Antonime: undependable, unreliable, untrustworthy