punctilious (adj.)

• accurate
• active
• attentive
• careful
• censorious
• choosy
• close
• compliant
• conforming
• conscientious
• conscionable
• constant
• conventional
• correct
• critical
• delicate
• demanding
• detailed
• devoted
• devout
• discriminating
• discriminative
• duteous
• dutiful
• exact
• exacting
• exigent
• exquisite
• faithful
• fastidious
• fine
• finical
• finicky
• formal
• fussy
• heedful
• loyal
• methodical
• meticulous
• mindful
• minute
• narrow
• nice
• observant
• orderly
• painstaking
• particular
• picky
• precious
• precise
• priggish
• prudish
• punctual
• puritanic
• refined
• regardful
• religious
• rigid
• rigorous
• scrupulous
• selective
• sensitive
• strict
• subtle
• true