View synonyms for observational


[ ob-zur-vey-shuh-nl ]


  1. of, relating to, or founded on observation, especially founded on observation rather than experiment.

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Other Words From

  • obser·vation·al·ly adverb
  • nonob·ser·vation·al adjective
  • preob·ser·vation·al adjective

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Word History and Origins

Origin of observational1

First recorded in 1825–35; observation + -al 1

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Example Sentences

The technique reduced, to only about one part in ten trillion, the observational uncertainties in the frequency of light these transitions emitted—a staggering degree of accuracy by any standard.

So far, Pfizer and BioNTech are only reporting two months of observational safety for their phase 3 clinical trial, although the companies have committed to continue monitoring their more than 43,000 trial participants.

From Vox

While social norms can be communicated in many ways, one of the main paths is through observational learning.

Through interviews and observational studies in these communities, I documented the daily income flows for micro-entrepreneurs.

From Fortune

Scientists cannot use observational research to determine whether one particular thing causes something else.

And without a concrete way to measure the incidence of domestic violence, it is purely observational.

When a scientific truth arises, it is so because of observational and experimental consensus.

Why do you prefer a purely observational approach that immerses the viewer in the events on the Maidan without any commentary?

This was followed by Kronick in 2009, the largest observational study ever done of insurance and mortality.

I'm just saying that this possibility is within the bounds of what at least some solid observational studies have found.

In twelve months observational astronomy had made such a bound as it has never made before or since.

Religion also has its observational work in the larger and possibly more arduous manner.

I assure you, Mr. Payne, our visit to Earth was intended purely for observational purposes!

Only in this way can the error of regarding geography as a purely observational natural science be corrected.

During that period there came to the front the founder of accurate observational astronomy.


Related Words




observationobservation car