AskDefine | Define strictly

Dictionary Definition

strictly adv
1 restricted to something; "we talked strictly business" [syn: purely]
2 in a stringent manner; "the laws are stringently enforced"; "stringently controlled" [syn: stringently]
3 in a rigorous manner; "he had been trained rigorously by the monks" [syn: rigorously]

User Contributed Dictionary




  1. In a strict manner.
    He adhered strictly to the diet his doctor prescribed.
  2. In a narrow or limited sense.
    That term refers strictly to smaller birds.

Related terms

Extensive Definition

In mathematical writing, the adjective strict is used to modify technical terms which have multiple meanings. It indicates that the exclusive meaning of the term is to be understood. (More formally, one could say that this is the meaning which implies the other meanings.) The opposite is non-strict. This is often implicit but can be put explicitly for clarity.
This term is commonly used in the context of inequalities — the phrase "strictly less than" means "less than and not equal to" (likewise "strictly greater than" means "greater than and not equal to"). More generally a , strict total order and strict weak order exclude equality and equivalence.
A related use occurs when comparing numbers to zero — "strictly positive" and "strictly negative" mean "positive and not equal to zero" and "negative and not equal to zero", respectively. Also, in the context of functions, the adverb "strictly " is used to modify the terms "monotonic", "increasing", and "decreasing".
On the other hand, sometimes one wants to specify the inclusive meanings of terms. In the context of comparisons, one can use the phrases "non-negative", "non-positive", "non-increasing", and "non-decreasing" to make it clear that the inclusive sense of the terms is intended.
Using such terminology helps avoid possible ambiguity and confusion. For instance, upon reading the phrase "x is positive", it is not immediately clear whether x = 0 is possible, since some authors might use the term positive loosely, and mean that x is not less than zero. Therefore, it is prudent to write "x is strictly positive" for x>0 and "x is non-negative" for x≥0. (A precise term like non-negative is never used with the word negative in the wide, loose sense that includes zero.)
The word "proper" is often used in the same way as "strict." For example, a "proper subset" of a set S is a subset that is not equal to S itself, and a "proper class" is a class which is not also a set.
strictly in German: Streng

Synonyms, Antonyms and Related Words

absolutely, accurately, austerely, conscientiously, dead, definitely, directly, even, exactingly, exactly, expressly, exquisitely, faithfully, fussily, grimly, harshly, in all respects, in detail, in every respect, ipsissimis verbis, just, literally, literatim, meticulously, minutely, nicely, plumb, point-blank, positively, precisely, punctiliously, punctually, refinedly, right, rigidly, rigorously, ruggedly, scrupulously, severely, square, squarely, sternly, straight, stringently, to the letter, toughly, undeviatingly, unerringly, verbally, verbatim, verbatim et litteratim, with exactitude, with great nicety, with precision, word by word, word for word
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