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derail Synonyms

Another word for derail

Choosing another word for derail depends on context, so the synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
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• verb (Context 1)

To obstruct, divert, or ruin the normal progress of a plan, negotiation, career, or process.

Usage Example

"An unexpected budget cut threatened to thwart the entire research project before it could begin."

Strong
thwart
foil
disrupt
sabotage
scupper
sidetrack
undermine
frustrate

• noun (Context 2)

A mechanical safety device attached to a railway track designed to guide unauthorized or runaway rolling stock off the rails to prevent collisions.

Usage Example

"The yard crew installed a portable derailer on the siding to protect the maintenance workers."

Strongest
derailer

Opposites of derail

The opposite of derail shifts depending on context. Common opposites include:

rerail
advance
facilitate
promote
further
See all opposites of derail

• Nearby Words

deputize
deputy
der
derail
derailer
derailment
derange

Cite this Entry

Wordmom. (2026). Synonyms for Derail. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/derail
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