rocklike

loyal staunch steady sturdy true trustworthy

always there carrying the load certain come-through constant faithful good as one's word secure stable steadfast sure to be counted on tried tried-and-true trusty unfailing

disloyal undependable unfaithful unreliable unstable untrustworthy weak wobbly

dishonest irresponsible uncertain unsteady unsure

golden silvery

iron mineral

fusible geologic hard leaden metallurgic ory stannic tinny

rough rugged tough

adamant bloodless firm flinty hard impassible insensate insensible insensitive obdurate pitiless solid steady

calm courteous easy even facile gentle level mild moderate nice refined smooth sophisticated weak

dependable flat flexible happy healthy yielding

stable strong sturdy substantial tight

close compact concrete firm heavy hulky husky material thick

compacted concentrated consolidated dense fixed hefty massed physical secure unshakable

unstable wobbly

flexible immaterial indefinite intangible

fluid gaseous insubstantial liquid tenuous vaporous