What does discriminative mean?
"Discriminative" is an adjective describing something that serves to distinguish or differentiate — that is, capable of making or enabling fine distinctions. It appears most often in scholarly and technical contexts: psychologists speak of a "discriminative stimulus", one whose presence signals that a particular response will be reinforced, while machine-learning researchers contrast "discriminative" models, which learn to separate categories directly from examples, with "generative" ones that attempt to model how the data was produced. The word can also carry an approving sense of keen discernment or careful judgment, as in "a discriminative ear for music", though this usage overlaps with the more familiar "discriminating". Crucially, it must be distinguished from "discriminatory", which refers to unfair treatment and bears a strongly negative connotation. Derived from the Latin verb distinguere-related family around "discernere" (to discern), "discriminative" remains a precise, formal term best suited to writing about perception, classification, and analytical distinction rather than casual conversation.
Relating to or characterized by the making of distinctions; serving to discriminate between different things.
"The experiment tested the rats' discriminative responses to two different tones."
Common in psychology, statistics, and machine learning; avoid confusion with 'discriminatory'.
Showing careful judgment or discernment; marked by the exercise of good discrimination.
"She had a discriminative palate, able to detect even subtle differences between vintages."
This sense overlaps with 'discriminating', which is more common in everyday use.
In machine learning, a 'discriminative' model learns to draw boundaries between cats and dogs — while its 'generative' cousin tries to draw the cat itself.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of discriminative
"Discriminative" derives ultimately from the Latin verb "discernere", meaning "to distinguish or set apart", via the past participle stem "discriminat-" of the related form "discriminare". English adopted the word in the early modern period, likely in the 17th century, alongside siblings such as "discriminate" and "discrimination". The prefix "dis-" conveys separation, and the root relates to "cernere" (to sift or decide), which also gives us words like "discreet" and "secret". Its cognates across Romance languages include French "discriminatif" and Spanish "discriminativo".
Related word forms
How discriminative is actually used
The word is largely neutral and often technical, appearing frequently in psychology (discriminative stimulus), linguistics, and machine learning. It should not be confused with 'discriminatory', which implies unjust bias. In everyday speech, 'discriminating' or 'discerning' are more common when praising refined taste.
Easily confused with discriminative
'Discriminative' describes the capacity for making distinctions (often in technical contexts), while 'discriminating' typically means showing good taste or judgment.
'Discriminative' is neutral and refers to distinguishing ability, whereas 'discriminatory' carries a negative connotation of unfair treatment based on prejudice.