Extended Strong's Greek Lexicon (Abbott-Smith based)
crooked
Usage: σκολιός, -ά, -όν [in LXX: Deu.32:5 (עִקֵּשׁ), Pro.28:18 (σ. ὁδοῖς πορεύεσθαι, for: דֶּרֶךְ עָקַשׁ), Isa.40:4 (עָקֹב), etc. ;] curved, bent, winding (opposite to ὀρθός, εὐθύς): Luk.3:5 (LXX). Metaphorical, crooked, perverse, unjust: Act.2:40, Php.2:15, 1Pe.2:18.† (AS)