Dictionary.com
Thesaurus.com

decadelong

American  
[dek-eyd-lawng, duh-keyd-lawng] / ˈdɛk eɪdˌlɔŋ, dəˈkeɪd lɔŋ /
Or decade-long

adjective

  1. lasting for a decade.

    After a decadelong study, the drug has finally been approved by the FDA.


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.

See Examples For:

Their nearly decadelong friendship became strained after she failed to repay a loan from him, he says.

From The Wall Street Journal May 23, 2026

Expect a decadelong transition, but the stock market will reflect the future first, well before earnings peak.

From The Wall Street Journal May 3, 2026

After nearly a decadelong cycle of hype, disappointment and then renewed hype, self-driving taxis are starting to roll onto American streets in large numbers.

From The Wall Street Journal May 1, 2026

The risk of mines in the Persian Gulf emerged in the 1980s as a risk to global shipping during the decadelong Iran-Iraq war in an episode now known as the Tanker Wars, when the U.S.

From The Wall Street Journal Mar. 12, 2026

Now, if ever, is the time for action, with practically half of the period alloted for the prosecution of a decadelong Crusade already behind us.

From The Light of Divine Guidance (Volume 1) by Shoghi Effendi

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training