sidelong UK /ˈsaɪd.lɒŋ/US /ˈsaɪd.lɑŋ/adjective 4adverb 2forms 2 adjective4 •Directed to the side; sideways.He cast me a sidelong glance. •Indirect; suggestive; not straightforward.She made some sidelong remarks about his manhood. •Slanting or sloping; oblique. •Along the side of something. adverb2 •Towards the side; sideways. •obliquely formsmore sidelong · most sidelong