Dictionary.com
Thesaurus.com
Synonyms

observational

American  
[ob-zur-vey-shuh-nl] / ˌɒb zɜrˈveɪ ʃə nl /

adjective

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


Other Word Forms

  • nonobservational adjective
  • observationally adverb
  • preobservational adjective

Etymology

Origin of observational

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

Vocabulary lists containing observational

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"The Earth’s energy imbalance has increased since its observational record began in 1960, particularly in the past 20 years. It reached a new high in 2025."

From Barron's • Mar. 23, 2026

She lost her sight aged 17, five years ago, and says her more observational tics, such as focusing on peoples' physical appearances, have since lessened.

From BBC • Feb. 27, 2026

Although middle-aged, I had not lost the observational skills I’d learned in middle school: I could quickly identify the cool kids and the ones eager for their approval.

From The Wall Street Journal • Feb. 19, 2026

It's the strongest observational record yet of the long-theorized phenomenon that some stars simply fade into black holes, the authors say.

From Barron's • Feb. 12, 2026

Both theories lack observational evidence: no one has ever seen a giant tortoise with the earth on its back, but then, no one has seen a superstring either.

From "A Brief History of Time: And Other Essays" by Stephen Hawking