desserrer

loosen, slacken

verb deh-seh-REH Rare

Usage Note

Desserrer is the opposite of serrer (to tighten). Common in practical contexts: desserrer une vis (loosen a screw) or desserrer sa ceinture (loosen one's belt). The reflexive se desserrer means 'to come loose' on its own.

Examples

"Il faut desserrer ce boulon rouillé."

Natural Translation

You need to loosen this rusty bolt.

Related Words

Explore French by topic

FrenchNow

Sorry in French: Désolé vs Pardon vs Excusez-moi

Use désolé for genuine regret, pardon to bump or squeeze past, and excusez-moi to get attention. A situation-by-situation guide to saying sorry in French.

June 4, 2026 5 min read

FrenchNow

Avoir or Être? Picking the Right Past-Tense Helper

Use avoir for the passé composé unless the verb is reflexive or one of ~16 DR MRS VANDERTRAMP motion verbs, which take être and force agreement.

June 4, 2026 5 min read

FrenchNow

French Greetings: Bonjour, Salut, Coucou Explained

Bonjour, salut, or coucou? Pick the right French greeting every time with a simple two-axis guide to formality and time of day, plus how to say goodbye.

June 4, 2026 5 min read

FrenchNow

French Noun Gender: Rules to Guess Right 80%

Guess French noun gender right 80% of the time using word endings: -age, -ment, -eau are masculine; -tion, -té, -ette are feminine. A high-yield system.

June 3, 2026 5 min read