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arch Synonyms

Another word for arch

Choosing another word for arch depends on context, so the 27 synonyms and similar words below are separated across 6 exact definitions and ranked by match strength.
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• noun (Context 1)

A curved symmetrical structure spanning an opening and typically supporting the weight of a bridge, roof, or wall above it.

Usage Example

"The ancient Roman aqueduct was supported by a series of massive stone arches."

Strong
vault
archway
span
arc
curve

• verb (Context 2)

To form or cause to form the curved shape of an arch.

Usage Example

"The startled cat arched its back and hissed at the approaching dog."

Strongest
curve
Strong
bow
bend
arc
hunch
curvate

• noun (Context 3)

The curved inner part of the bottom of the human foot between the ball and the heel.

Usage Example

"Runners with high arches often require specialized insoles for adequate cushioning."

Strong
instep

• verb (Context 4)

To span or extend across an area or space in the form of an arch.

Usage Example

"Tall oak trees arched over the narrow country lane, creating a shady canopy."

Strong
span
vault
bridge

• adjective (Context 5)

Deliberately or affectedly playful, teasing, and ironic in manner.

Usage Example

"She gave him an mischievous smile that suggested she knew more about the secret than she was letting on."

Strong
mischievous
roguish
impish
teasing
knowing
sly
saucy
playful
knavish

• adjective (Context 6)

Principal, chief, or most extreme of its kind.

Usage Example

"Throughout his political career, he remained an chief opponent of electoral reform."

Strongest
chief
principal
Strong
foremost
primary
leading
prime
supreme

Opposites of arch

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

straighten
earnest
flatten
minor
artless
secondary
guileless
sincere
See all opposites of arch

Cite this Entry


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