Skip to main content
spanner in the plan

spanner in the plan

7.0
A sudden problem that stops plans from happening
  • idiom
  • UK
translation icon : obstáculo
  • The sudden weather change threw a real spanner in the plan for our outdoor event.

Examples

  • His illness put a spanner in the plan for the team's project launch.

  • Budget cuts have become a major spanner in the plan for development.

  • What a spanner in the plan that was!

  • The sudden rain was a spanner in the plan for the outdoor event.

  • Budget cuts have become a major spanner in the plan for development.

  • His illness put a spanner in the plan for the team's project launch.

  • The sudden weather change threw a real spanner in the plan for our outdoor event.

Synonyms

setback
vsspanner in the plan
148 3.6

A problem that delays progress or makes things worse

usually refers more to interruption of a plan than to general worsening
roadblock
vsspanner in the plan
50 3.9

A problem that stops progress or makes a goal hard to reach

focuses more on disrupting plans unexpectedly rather than general prevention
hitch
vsspanner in the plan
37 4.2

A small problem that causes a delay

is stronger and can imply a more disruptive obstacle to plans
pitfall
vsspanner in the plan
35 4.8

An unexpected problem that is not obvious at first

is more general about unexpected obstacles rather than hidden or subtle ones
snag
vsspanner in the plan
25 4.6

An unexpected problem that delays a plan

is similar but can imply larger disruption rather than only small delays
rub
vsspanner in the plan
  • Informal
22 7.7

An unexpected problem that makes a plan or situation more difficult

is more focused on halting plans rather than adding complexity
stumbling block
vsspanner in the plan
18 4.4

A problem that stops progress or makes moving forward difficult

is used more casually for obstacles that interrupt plans rather than formal blocks
hang-up
vsspanner in the plan
16 5.9

An unexpected problem that stops progress in a plan or process

is similar but often implies a one-off trouble rather than a sticking issue
curveball
vsspanner in the plan
  • Informal
11 6.0

An unexpected problem that makes a situation more difficult

focuses more narrowly on planned disruptions rather than any surprising event
monkey wrench
vsspanner in the plan
  • Informal
1 7.0

An unexpected problem that causes trouble with a plan

is the same idea but framed as a common idiom rather than tool imagery
show-stopper
vsspanner in the plan
1 6.6

A serious problem that stops a plan, product, or event from going ahead

can be less severe, covering surprises that hinder but do not fully stop plans
unexpected roadblock
vsspanner in the plan
4.2

A sudden problem that stops progress and causes delay

covers similar surprises but may be used more idiomatically for plans
bump in the schedule
vsspanner in the plan
5.9

A small unexpected delay in a planned schedule

is broader, applying to plans and progress beyond scheduling issues

Antonyms

smooth sailing
  • Informal
16 2.7

An easy time with no problems

clear sailing
  • Informal
2 3.5

A time when things move forward easily and without problems

How Disruptive

crisis
3.1
obstruction
222 4.8
spanner in the plan
  • UK
7.0
setback
148 3.6
snag
25 4.6

Surface Forms

Morphology

spanner + in + the + plan

There is a clear metaphorical link: a 'spanner' (tool) inserted into something suggests causing a malfunction or obstruction, so a learner who knows the words might infer an obstacle to a 'plan'. However the expression is a conventional idiom (often 'spanner in the works') and the specific idiomatic sense is language- and culture-bound and not fully predictable from the parts for a B1 learner without prior exposure.

Etymology

Spanner in the plan may come from the picture of someone throwing a spanner (a wrench) into a machine so its parts stop moving, ruining the plan. So it means 'an unexpected problem' that stops what you planned.