English Reference
Adjective

behavioral

adj.
B2 Upper Intermediate US /biˈheɪvjɝəɫ/ UK /bɪhˈeɪvjəɹəl/ be·hav·ioral UK spelling behavioural

adj.relating to the way people or animals act and react to things. It describes things that focus on actions rather than thoughts or feelings.

adj.relating to the observable actions or reactions of an individual or group in response to stimuli. Often used in scientific or psychological contexts to distinguish external actions from internal mental processes.


SIMPLE

The doctor noticed some behavioral changes in the patient.

CONTEXTUAL

Researchers are studying the behavioral patterns of birds to understand how they adapt to urban environments.

COMPLEX

The school implemented a new behavioral intervention program designed to reward positive social interactions and reduce instances of classroom disruption through consistent reinforcement.

Usage

Commonly modifies nouns like 'pattern', 'problem', 'science', or 'trait'.

Usage behavioural challenge

Its findings could be useful in psychology, behavioral research, and the design of environments in which people regularly make choices.

ScienceDaily· 13 Aug 2026

In the control group, young people's emotional and behavioral difficulties increased over the nine-week period, while their self-efficacy declined.

Phys.org· 11 Aug 2026

Common in science writing


From behavior + -al.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Level B2 · Upper Intermediate
Frequency Frequent
Updated