Definitions

longitudinal

[lon-ji-tood-n-l, -tyood-] / ˌlɒn dʒɪˈtud n l, -ˈtyud- /

ADJECTIVE

over a protracted period of time; running lengthwise

Synonyms

STRONGEST

lengthwise long long-term

STRONG

continuing endlong long-run protensive

WEAK

continued drawn-out elongated extensive linear longstanding overall prolonged protracted

Antonyms

STRONGEST

immediate short-term

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.

Lewis, the Measure of America director, pointed to a longitudinal study of young people in similar situations.

From Los Angeles Times

A prospective longitudinal study, he said, would help clarify how mental health and meditation interact over time.

From Science Daily

Marc was accepted into AllFTD, a longitudinal study that is the largest ever conducted for this disease.

From Los Angeles Times

And, given that botox only lasts three to six months, any longitudinal study would have to ensure participants are going for regular top-ups.

From BBC

The researchers looked at data from the Panel Study of Income Dynamics, which they noted is considered to be “gold standard longitudinal study of earnings and employment dynamics” in social sciences.

From Salon