direct line

THESAURUS

direct line

affiliation, air line, apparentation, axis, beeline, birth, blood, bloodline, branch, breed, chord, common ancestry, consanguinity, derivation, descent, diagonal, diameter, directrix, distaff side, edge, extraction, family, female line, filiation, great-circle course, house, line, line of descent, lineage, male line, normal, perpendicular, phylum, race, radius, radius vector, right line, secant, seed, segment, sept, shortcut, side, spear side, spindle side, stem, stirps, stock, straight, straight course, straight line, straight stretch, straightaway, strain, streamline, succession, sword side, tangent, transversal, vector

ROGET THESAURUS

direct line

Straightness

N straightness, rectilinearity, directness, inflexibility, straight line, right line, direct line, short cut, straight, rectilinear, rectilineal, direct, even, right, true, in a line, unbent, virgate, undeviating, unturned, undistorted, unswerving, straight as an arrow, inflexible, laser-straight, ramrod-straight.