“Through thick and thin” means staying loyal to someone or continuing to support them through both good times and difficult ones.
The phrase often describes lasting friendship, family bonds, or commitment—and its examples reveal how much depends on the situation.
What Does “Through Thick and Thin” Mean?
To stand by someone through thick and thin is to remain supportive and faithful whether circumstances are favorable or challenging.
The phrase can also describe sticking with a plan, group, or commitment despite setbacks.
“Thick” and “thin” work together as opposites that suggest a range of conditions.
In modern use, the expression is figurative: it does not refer to physical thickness.
It emphasizes persistence and loyalty across changing circumstances.
- For a person: staying beside or supporting them during success and hardship.
- For a commitment: continuing with it when obstacles arise as well as when things go smoothly.
- For a relationship: remaining dependable through disagreements, change, or outside pressure.
How to Use the Phrase
The expression commonly appears with verbs such as stand by, stick with, and support.
It can describe what someone has done in the past, what they promise to do, or the nature of a relationship.
- “Maya stood by her brother through thick and thin.”
- “They have been friends through thick and thin since college.”
- “Our team stuck with the project through thick and thin.”
- “I’ll support you through thick and thin.”
The phrase usually takes the form through thick and thin, without an article.
It often follows the person or situation being supported, or comes after a verb such as stay or remain: “She remained loyal through thick and thin.”
Examples in Different Situations
Friendship
“Even when Liam lost his job and moved away, his closest friends stayed in touch through thick and thin.”
This example highlights support during a difficult period.
It does not necessarily mean that the friends agreed with every choice Liam made; it means they remained present and dependable.
Family
“Her grandparents supported her through thick and thin, from her first business idea to its eventual success.”
Here, the phrase covers both the uncertainty of starting out and the later achievement.
It describes support across changing circumstances.
Romantic relationships
“They promised to face life’s challenges through thick and thin.”
This conveys an intention to stay committed during hardship.
In a real relationship, the phrase describes loyalty, not a requirement to accept harmful behavior or remain in an unsafe situation.
Work and shared goals
“The volunteers kept the community garden going through thick and thin, including a dry summer and a shortage of supplies.”
The expression can apply to groups and projects, not just personal relationships.
It suggests persistence when conditions become difficult.
Is “Through Thick and Thin” Positive?
Usually, yes.
The phrase praises loyalty, resilience, or dependable support.
It can sound warm and heartfelt when used about a friend, partner, relative, or team.
Its tone depends on context, though.
Someone might use it critically or humorously to describe a person who remains attached to a failing plan.
In other cases, a speaker may use it to pressure someone into enduring a situation they should be free to leave.
The idiom itself expresses persistence; the surrounding words determine whether that persistence is admirable or unwise.
Similar Expressions and Their Differences
Several expressions share the idea of loyalty or endurance, but they are not interchangeable in every sentence.
- “Stand by someone” means to remain loyal or supportive.
It can be used on its own, without the explicit idea of good times and bad times. - “In good times and bad” states the contrast more directly and often appears in discussions of relationships or commitments.
- “Come rain or shine” means that something will happen regardless of circumstances.
It often emphasizes a firm plan or regular activity rather than personal loyalty. - “Stick it out” means to persist through a difficult experience.
It focuses on enduring hardship and does not necessarily suggest loyalty to another person. - “Ride or die” is an informal expression for intense loyalty.
Its tone is more casual and emphatic than “through thick and thin.”
Is It an Idiom, a Proverb, or an Adjective?
“Through thick and thin” is an idiomatic expression.
Its figurative meaning—remaining loyal or persistent through changing conditions—is not simply a literal description of thickness.
It is not a proverb: it does not present a general lesson or piece of advice in the way a saying such as “Better safe than sorry” does.
The expression itself is not an adjective.
In a sentence such as “They were friends through thick and thin,” it functions as an adverbial phrase, describing the circumstances across which the friendship continued.
You can also use it after a verb: “He supported her through thick and thin.”
Common Mistakes to Avoid
- Changing the word order: The standard expression is “through thick and thin,” not “through thin and thick.”
- Adding unnecessary words: Say “through thick and thin,” rather than “through the thick and the thin.”
- Using it for a brief inconvenience: The phrase often implies enduring loyalty or persistence over a meaningful span of time.
A minor delay may call for a simpler description. - Assuming it means unconditional agreement: Supporting someone does not require endorsing every decision they make.
Loyalty can include honest disagreement.
Frequently Asked Questions
Does “through thick and thin” mean no matter what?
It often comes close: it describes remaining loyal or persistent through a wide range of circumstances.
The exact commitment depends on context, and the phrase does not mean someone must accept every action or remain in an unsafe situation.
Can you use it for a group or project?
Yes.
You can say that a team, organization, or group stuck together through thick and thin, or that someone continued a project through thick and thin.
In each case, the phrase emphasizes commitment through changing conditions.
What is a simple synonym for “through thick and thin”?
“In good times and bad” is a close alternative. “Loyally” or “despite difficulties” may fit particular sentences, though neither carries the full combination of support and endurance in quite the same way.