Adverbs Ending in SLY and Containing SI

This list gathers 24 English adverbs ending in SLY and containing SI, such as Simultaneously, Insidiously, Assiduously, Disingenuously, Expressionlessly, Parsimoniously and Sinuously. Use the sorting controls below to organize entries by length, or consult our verb grammar guide to study adverb placement and -ly formation rules.

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Starts with A
1 words
assiduously
Starts with D
3 words
disingenuously
desirously
designlessly
Starts with E
1 words
expressionlessly
Starts with F
1 words
fissiparously
Starts with I
1 words
insidiously
Starts with N
3 words
necessitously
nondisingenuously
nonnecessitously
Starts with P
3 words
parsimoniously
passionlessly
pusillanimously
Starts with R
2 words
resistlessly
resinously
Starts with S
7 words
simultaneously
sinuously
sightlessly
sinlessly
supposititiously
sinistrously
suppositiously
Starts with U
2 words
unparsimoniously
unsimultaneously

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