n. 25B6; adjective
a sturdy lad : STRAPPING, well built, muscular, athletic, strong, hefty, brawny, powerful, solid, burly, rugged, robust, tough, hardy, lusty; informal husky, beefy, meaty; dated stalwart; poetic/literary thewy, stark.
sturdy boots : ROBUST, strong, strongly made, well built, solid, stout, tough, resilient, durable, long-lasting, hard-wearing.
sturdy resistance : VIGOROUS, strong, stalwart, firm, determined, resolute, staunch, steadfast.
weak.