Dikarenakan English yg masih tarkam, kadang kalo nemu kata2 yg rada aneh n asing, jadi bingung…makanya disimpen disini aja. Yah, walau sebenernya kalo mo nyari di gugel bisa banget sih, secara ini jg dptnya dari gugel getoh…

brittle

The term brittle, when applied to software, means software that may appear reliable, but will fail badly when presented with unusual data.
en.wikipedia.org/wiki/Brittle (software) 

rigorous:

• rigidly accurate; allowing no deviation from a standard; “rigorous application of the law”; “a strict vegetarian”
• demanding strict attention to rules and procedures; “rigorous discipline”; “tight security”; “stringent safety measures”
  wordnet.princeton.edu/perl/webwn

flaw:

• defect: an imperfection in a device or machine; “if there are any defects you should send it back to the manufacturer”
• defect or weakness in a person’s character; “he had his flaws, but he was great nonetheless”
• add a flaw or blemish to; make imperfect or defective
  wordnet.princeton.edu/perl/webwn

vague:not definite, precise, or clear
encarta.msn.com/dictionary_1861620836/indeterminate.html 

agile:

• moving quickly and lightly; “sleek and agile as a gymnast”; “as nimble as a deer”; “nimble fingers”; “quick of foot”; “the old dog was so spry it …
• mentally quick; “an agile mind”; “nimble wits”
  wordnet.princeton.edu/perl/webwn

delve:dig: turn up, loosen, or remove earth; “Dig we must”; “turn over the soil for aeration”
wordnet.princeton.edu/perl/webwn