Of an austere or hard nature; rugged.
Of a part of the body, a tree, etc.: full of knots (knobs or swellings); gnarled, knobbly.
Of string or something stringlike: full of, or tied up, in knots.
Complicated or tricky; complex, difficult.
Not compound, but possibly lobed.
Consisting of a single individual or zooid; not compound.
Consisting of one single substance; uncompounded.
Undistinguished in social condition; of no special rank.
Without ornamentation; plain.
Free from duplicity; guileless, innocent, straightforward.
Of a group: having no normal subgroup.
Homogenous.
Feeble-minded; foolish.
Using steam only once in its cylinders, in contrast to a compound engine, where steam is used more than once in high-pressure and low-pressure cylinders.
Uncomplicated; taken by itself, with nothing added.
Part of the apparatus for raising the heddles of a drawloom.
A herbal preparation made from one plant, as opposed to something made from more than one plant.
A feast which is not a double or a semidouble.
A drawloom.
A simple or atomic proposition.