I . a.
1.
Direct, undeviating, straight.
2.
Truthful, veracious, reliable, trustworthy.
3.
Honest, honorable, equitable, fair, just, square, even-handed, upright, straight, conscientious.
4.
Artless, ingenuous, frank, sincere, candid, honest, guileless, outspoken, true-hearted.
II . ad.
Directly, in a straight line, without turning to the right or to the left.