Efficient and Consistent

adjective

• Being effective without wasting time or effort or expense.
  • usage: "an efficient production manager"; "efficient engines save gas"
• Able to accomplish a purpose; functioning effectively.
  • usage: "people who will do nothing unless they get something out of it for themselves are often highly effective persons...-G. B. Shaw; "effective personnel"; "an efficient secretary"; "the efficient cause of the revolution"
  • synonyms: effective

• (n.) Causing effects; producing results; that makes the effect to be what it is; actively operative; not inactive, slack or incapable; characterized by energetic and useful activity; as, an efficient officer, power.
• (n.) An efficient cause; a prime mover.

adjective

• Sometimes followed by `with'. ( in agreement or consistent or reliable) "testimony consistent with the known facts"; "I have decided that the course of conduct which I am following is consistent with my sense of responsibility as president in time of war- FDR
• Capable of being reproduced.
  • usage: "astonishingly reproducible results can be obtained"
  • synonyms: reproducible
• Marked by an orderly, logical, and aesthetically consistent relation of parts.
  • usage: "a coherent argument"
  • synonyms: coherent, logical, ordered
• The same throughout in structure or composition.
  • usage: "bituminous coal is often treated as a consistent and homogeneous product"
  • synonyms: uniform

• (a.) Possessing firmness or fixedness; firm; hard; solid.
• (a.) Having agreement with itself or with something else; having harmony among its parts; possesing unity; accordant; harmonious; congruous; compatible; uniform; not contradictory.
• (a.) Living or acting in conformity with one's belief or professions.