Implicit and Efficient

adjective

• Implied though not directly expressed; inherent in the nature of something.
  • usage: "an implicit agreement not to raise the subject"; "there was implicit criticism in his voice"; "anger was implicit in the argument"; "the oak is implicit in the acorn"
  • synonyms: inexplicit
• Being without doubt or reserve.
  • usage: "implicit trust"
  • synonyms: unquestioning

• (a.) Resting on another; trusting in the word or authority of another, without doubt or reserve; unquestioning; complete; as, implicit confidence; implicit obedience.
• (a.) Infolded; entangled; complicated; involved.
• (a.) Tacitly comprised; fairly to be understood, though not expressed in words; implied; as, an implicit contract or agreement.

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.