1) Became less formal 2) Became more genial 3) Erect in posture 4) Holding strong 5) Not bent 6) Not crooked 7) Not having yielded 8) Straight 9) Straight as an arrow Found on https://www.crosswordclues.com/clue/unbent
adjective not bent; `looking for an unbent nail`; `trees with straight unbent trunks make the best lumber` Found on https://www.encyclo.co.uk/local/20974