(a.) Careful; particular; cautious; timid\; fearful.

OK Spartan Spartanic absolute accurate active advertent agog alert all ears all eyes all right assiduous astringent attentive austere authoritarian aware careful cautious censorious choicy choosy close compliant concentrated conforming conscientious conscionable conscious constant correct critical dead right delicate demanding detailed devoted devout diligent discriminating discriminative dour duteous dutiful earnest exact exacting exigent exquisite faithful fastidious faultless fine finical finicking finicky flawless full fussy grim harsh heedful intense intent intentive just just right letter-perfect loyal methodical microscopic mindful minute narrow nice niggling observant observing okay on the ball on the job open-eared open-eyed openmouthed orderly overconscientious overscrupulous painstaking particular perfect perfectionist perfectionistic pernickety picayune picky practicing precious precise precisian precisianistic precisionist precisionistic priggish proper prudish punctilious punctual puristic puritanic refined regardful religious right rigid rigorous rugged scrupulous scrutinizing selective sensitive severe special specific stern straight straight-up-and-down strict stringent subtle tender-conscienced thorough tough TRUE unsparing watchful