adverb
- in a manner based on or derived from observation; by means of observing or watching
Usage: formal; often used in scientific and academic contexts
Examples
- The scientist gathered data observationally before forming a hypothesis.
- Observationally, the two groups showed distinct behavioral patterns.
- The study was conducted observationally without any experimental intervention.
- Observationally speaking, the climate has changed significantly over the past decade.
- The researchers documented the animal behavior observationally in its natural habitat.