efficient
smooth
a la mode
advanced
aerodynamic
arrowlike
automated
avant-garde
compact
contemporary
curved
curvilinear
dead straight
direct
even
far out
fashionable
flat
flowing
forward-looking
horizontal
hydrodynamic
in
in a line
labor-saving
level
lineal
linear
mod
modern
modernistic
modernized
modish
newfashioned
now
present-day
present-time
productive
profitable
progressive
rectilineal
rectilinear
right
ruler-straight
simplified
straight
straight-cut
straight-front
straight-side
stripped down