Synonyms of developmental

developmental

adjective

dē-ˌve-ləp-ˈmen-tᵊl 

as in experimental

made or done as an experiment

developmental weaponry that is classified as top secret by the Pentagon

Synonyms & Similar Words

• experimental
• investigative
• trial
• pilot
• preliminary
• exploratory
• preparatory
• temporary
• theoretic
• hypothetical
• speculative
• theoretical
• tentative
• probative
• provisional
• conjectural
• untried
• unproven
• untested
• unproved

Antonyms & Near Antonyms

• standard
• established
• advanced
• accepted
• developed
• final
• permanent
• tested
• decisive
• definitive
• proved
• conclusive
• tried
• proven

Example Sentences

Recent Examples of developmental

Neurotypical people generally process sensory information, communicate, learn, and socialize in ways that match conventional developmental patterns. —Lindsay Curtis, Verywell Health, 24 Apr. 2025

However, two new studies suggest that mattresses firm enough for a child to sleep on safely may emit toxic chemicals that previous research indicates are linked to developmental delays and endocrine system disruptions. —Beth Ann Mayer, Parents, 23 Apr. 2025

The team already took a developmental pass-rusher in the first round last year, so the pick could be used more wisely in 2025. —Nicholas Creel, MSNBC Newsweek, 18 Apr. 2025

As developmental psychologist Robert Kegan shows in his research on adult development and organizational complexity, leaders sometimes conflate decisiveness with speed. —Michael Hudson, Forbes.com, 17 Apr. 2025