Synonyms for Bucket seat:

n.

dashboard, dimmer, defogger, air bag, back seat, demister, booster seat, dash, accelerator. chair (noun)
lounge chair, swing, deck chair, stool, seat, saddle, sofa, bench, straight chair, chair, armchair, sedan chair, recliner, dining chair, ottoman, hassock, lawn chair, furniture, bar stool, rocker, throne, swivel chair, pew, rumble seat, campstool.

Other synonyms:

dashboard, dimmer, defogger, air bag, back seat, demister, booster seat, dash, accelerator. Other relevant words:
accelerator.