2. Special form
[Nouns] straightness, rectilinearity, directness; inflexibility (stiffness) [more]; straight line, right line, direct line; shortcut.
[Verbs] be straight; have no turning; not incline to either side, not bend to either side, not turn to either side, not deviate to either side; go straight; steer for (directions) [more].
[Adjectives] straight; rectilinear, rectilineal; direct, even, right, true, in a line; unbent, virgate; undeviating, unturned, undistorted, unswerving; straight as an arrow (direct) [more]; inflexible [more].