What is 40 years of age called? The Quadragenarian Decade

While most people simply refer to this period as someone's 'forties,' a lesser-known and more formal term exists for a person who is 40 years of age or in their fourth decade of life: a quadragenarian. This article delves into the linguistic origins and meaning of this fascinating term, and explores the common experiences associated with this life stage.

Quick Summary

A person between the ages of 40 and 49 is formally called a quadragenarian, a term derived from Latin that signifies someone in their forties. While rarely used in everyday conversation, this unique descriptor is part of a wider family of terms, with roots in Latin, that classify each decade of human life.

Key Points

• Formal Name: A person between the ages of 40 and 49 is formally called a quadragenarian.

• Latin Roots: The term is derived from Latin, where quadraginta means forty and -arian denotes a person associated with that number.

• Part of a Pattern: Quadragenarian fits into a linguistic pattern for naming each decade of life, though it is less commonly used than terms for older age groups.

• Milestone Decade: The forties are often a time of significant personal and professional reflection, with many re-evaluating life goals and priorities.

• Focus on Wellness: This period typically involves a greater emphasis on proactive health measures, including diet, exercise, and mental well-being.

• Beyond Stereotypes: While stereotypes like the "midlife crisis" exist, the decade is more often characterized by thoughtful, deliberate evolution rather than impulsive changes.

The Origins of 'Quadragenarian'

The term "quadragenarian" comes from Latin. The root quadraginta means "forty," and the suffix -arian indicates a person connected to that number. This provides a formal way to describe individuals in their forties, usable as both a noun and an adjective.

The Language of Decades

The pattern seen in "quadragenarian" extends to other age decades, though these terms are generally uncommon in daily speech. Here's a brief list:

• Denarian: 10–19
• Vicenarian: 20–29
• Tricenarian: 30–39
• Quadragenarian: 40–49
• Quinquagenarian: 50–59
• Sexagenarian: 60–69
• Septuagenarian: 70–79
• Octogenarian: 80–89
• Nonagenarian: 90–99
• Centenarian: 100–109
• Supercentenarian: 110+

Terms for older decades, like nonagenarian or centenarian, are more frequently encountered than those for younger age groups, reflecting cultural perspectives on aging.

The Significance of Turning 40

Turning 40 is a notable life event, often marking a period of reflection and reassessment as individuals enter what is commonly considered middle age.

Common Themes in the Quadragenarian Decade

1. Career Focus: Individuals may consider career changes for fulfillment or better balance.
2. Health Emphasis: Increased attention is often given to physical and mental health through diet, exercise, and preventative care.
3. Family Life: Family roles shift as children grow and parents age.
4. Financial Planning: This decade is crucial for retirement and future financial security.
5. Personal Development: Many experience increased confidence and personal growth.

The 'Midlife Crisis' Stereotype

The idea of a "midlife crisis" is often associated with the 40s but is frequently an exaggeration. While some make drastic changes, many experience a more gradual shift in priorities towards internal satisfaction and legacy.

Health and Wellness for Quadragenarians

Prioritizing health in the forties is vital. This involves:

• Exercise: Combining cardio and strength training is beneficial.
• Nutrition: A balanced diet supports weight management and health.
• Mental Health: Managing stress and staying connected socially are important.
• Regular Check-ups: Routine screenings become more critical.

Comparison of Age-Related Decades

Decade Term	Age Range	Common Focus	Challenges	Opportunities
Vicenarian	20-29	Career establishment, independence	Debt, career uncertainty	High energy, learning potential
Tricenarian	30-39	Family and home building	Balancing work and family	Career progression, financial growth
Quadragenarian	40-49	Re-evaluation, health awareness	Midlife reassessment, physical changes	Increased wisdom, deeper relationships
Quinquagenarian	50-59	Transition to later life	Health concerns, empty nest	Retirement planning, pursuing hobbies

Conclusion: More Than a Label

While "quadragenarian" is the formal term for someone in their forties, this period is a dynamic stage of life characterized by reflection, growth, and change. Whether using the formal term or simply "forties," this decade is an opportunity to leverage experience and wisdom for a fulfilling future. For further information on healthy aging, consult resources like the World Health Organization.

Frequently Asked Questions

Is 'quadragenarian' a commonly used term?

No, 'quadragenarian' is a formal and rarely used term in everyday conversation. You are far more likely to hear someone simply referred to as being in their "forties" or as a "40-year-old".

What is the equivalent term for someone in their 50s?

For someone in their fifties (age 50-59), the formal term is a 'quinquagenarian'.

Do these age-related terms apply to all cultures?

These specific decade-based terms, like quadragenarian, are rooted in Latin and primarily used in English-speaking contexts. Other cultures may have different ways of categorizing or describing life stages.

What are some typical life changes for people in their 40s?

Life changes can include shifting career paths, a renewed focus on personal health, evolving family dynamics with older children or aging parents, and more strategic financial planning.

Is turning 40 considered 'middle-aged'?

Yes, turning 40 is widely considered the beginning of middle age, although the exact age range can vary by definition.

Why are the terms for older ages, like 'octogenarian,' more common?

Terms for older ages like 'octogenarian' or 'nonagenarian' are more frequently used because they highlight a more notable milestone of longevity and wisdom, unlike the quadragenarian label.

Can 'quadragenarian' be used as an adjective?

Yes, the word 'quadragenarian' can function as an adjective to describe things related to people in their forties, such as 'his quadragenarian years'.