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
• 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

This can result in learning disorders, developmental defects, and other long-term health problems. — Michele Laufik, Martha Stewart, 25 Sep. 2026

Both of these regions featured different chromatin — a mixture of DNA, RNA, and proteins that packages long DNA molecules — setting them on independent developmental paths. — Victor Tangermann, Futurism, 24 Sep. 2026

Nine of those looked at maternal cell phone use and developmental outcomes in their child. — New Atlas, 24 Sep. 2026

Warmth, responsiveness, and flexibility support a child’s developmental growth, while parental patterns of inconsistency and overindulgence can spoil kids. — Liz Regalia, Parents, 24 Sep. 2026