Synonyms for Straight chair:

n.

chair (noun)
chair, armchair, lounge chair, stool, bench, sofa, saddle, lawn chair, sedan chair, seat, furniture, dining chair, deck chair, rumble seat, bucket seat, bar stool, swing, ottoman, hassock, throne, pew, recliner, rocker, campstool, swivel chair.
straight chair (noun)
side chair.

Other synonyms:

Other relevant words:
side chair.