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Definitions

ex

[eks] / ɛks /
ADJECTIVE
erstwhile
Synonyms
STRONG
once
WEAK
bygone late old one-time past preceding previous quondam sometime
ADJECTIVE
previous
Synonyms
STRONGEST
earlier past preceding
WEAK
antecedent anterior erstwhile foregoing one-time precedent quondam sometime
Antonyms
WEAK
current future later on time present timely well-timed
ex-
ADJECTIVE
no longer
Synonyms
STRONGEST
bygone erstwhile former past
STRONG
dead deceased defunct extinct obsolescent obsolete
WEAK
late quondam
ADJECTIVE
former
Synonyms
STRONGEST
departed erstwhile old
STRONG
above ancient antecedent anterior bygone first past prior
WEAK
aforementioned aforesaid earlier foregoing late long gone long-ago of yore once one-time preceding quondam sometime whilom
Antonyms
STRONG
after modern new
WEAK
current ensuing following future present prospective subsequent succeeding
ADJECTIVE
late
Synonyms
STRONGEST
old once past previous sometime
WEAK
asleep bygone cold deceased defunct departed erstwhile exanimate extinct former inanimate lifeless onetime preceding quondam
Antonyms
STRONGEST
current future present
WEAK
antique early live old-fashioned on time prompt punctual
ADJECTIVE
outgoing
Synonyms
STRONG
departing last retiring withdrawing
WEAK
former migratory outbound outward-bound past
Antonyms
STRONGEST
incoming
WEAK
arriving entering
ADJECTIVE
past
Synonyms
STRONGEST
earlier early late old preceding previous prior recent
STRONG
ancient bygone latter over
WEAK
ages ago ancient history back when behind one bypast down memory lane erstwhile foregoing gone-by good old days latter-day long-ago olden days once one-time quondam retired sometime time was way back way back when
Antonyms
STRONGEST
after current future later on time
STRONG
modern new
WEAK
present

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

She and her ex each retained their own savings; Meinor’s consists of a $225,000 retirement account and her pension.

From The Wall Street Journal • Apr. 25, 2026

Sheriff Graeme Watson acknowledged she had been "naive and potentially taken advantage of" by her ex.

From BBC • Apr. 24, 2026

That ex, 66-year-old Perry Peay says not getting his own attorney was an easy choice, since he thinks Eberle is the best family law attorney in the area.

From The Wall Street Journal • Apr. 23, 2026

Her goal wasn’t to win, but to help ensure her disabled ex received a settlement that wouldn’t jeopardize his benefits.

From The Wall Street Journal • Apr. 23, 2026

There is reason to believe that recollection was an ex post facto elaboration; those on the scene recall a sensation more suggestive of relief and euphoria in the air.

From "Big Science" by Michael Hiltzik

Vocabulary lists containing ex

Scrabble: Two-Letter Words

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