Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
sidelong is an adjective and adverb meaning "(used especially of glances) directed to one side with or as if with doubt or suspicion or envy". It carries 6 recorded senses.
on the side
“the plow lay sidelong on the ground”
with the side toward someone or something
“seated sidelong to the window”
Definitions, synonyms and semantic relations for sidelong come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.