Find Synonyms
def Synonyms
Another word for def
Choosing another word for def depends on context, so the 12 synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
• adverb (Context 1)
(informal, chiefly in text messaging and online communication) Definitely; certainly.
Usage Example
"I will definitely be at the concert tonight if I finish my work on time."
Strongest
definitely
certainly
surely
absolutely
for sure
• adjective (Context 2)
(slang, originally hip-hop) Excellent, cool, or first-rate.
Usage Example
"The DJ played some really dope beats at the block party last night."
Strongest
dope
cool
excellent
fresh
Strong
awesome
first-rate
superb
Opposites of def
The opposite of def shifts depending on context. Common opposites include:
wack
awful
terrible
never
uncool
lame
doubtfully
• Nearby Words
Cite this Entry
Wordmom. (2026). Synonyms for Def. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/def