unforgetful

cohesive determined dogged forceful persistent relentless resolute spunky staunch steadfast stout strong-willed stubborn tough unswerving

retentive

adamant bound clinging coherent fast firm inflexible intransigent iron meaning business mulish obdurate obstinate persevering persisting pertinacious possessive purposeful set solid stalwart sturdy sure tight true unshakable

afraid irresolute kind unreliable weak yielding

loose slack surrendering unattached