Source : Webster's Revised Unabridged Dictionary (1913)

Sidelong \Side"long`\, adv. [See {Sideling}, adv.]
   1. Laterally; obliquely; in the direction of the side.

   2. On the side; as, to lay a thing sidelong.

   Note: [See {Sideling}, adv. ] --Evelyn.

Sidelong \Side"long`\, a.
   Lateral; oblique; not being directly in front; as, a sidelong
   glance.

         The bashful virgin's sidelong looks of love.
                                                  --Goldsmith.

Source : WordNet®

sidelong
     adj 1: (used especially of glances) directed to one side with or as
            if with doubt or suspicion or envy; "her eyes with
            their misted askance look"- Elizabeth Bowen; "sidelong
            glances" [syn: {askance}, {askant}, {asquint}, {squint},
             {squint-eyed}, {squinty}]
     2: situated at or extending to the side; "the lateral branches
        of a tree"; "shot out sidelong boughs"- Tennyson [syn: {lateral}]
     3: inclining or directed to one side; "moved downward in a
        sidelong way" - Bram Stoker
     adv 1: on the side; "the plow lay sidelong on the ground"
     2: with the side toward someone or something; "seated sidelong
        to the window"- Nathaniel Hawthorne
     3: to, toward or at one side; "darting eyes looking sidelong
        out of a wizened face" [syn: {sideways}, {obliquely}]