13-Letter Words Ending in LS

There are 52 13-letter words that end in LS. 17 are common words, such as ANTIMALARIALS and BICENTENNIALS. A rarer one is ULTRARADICALS. In this set, A is the most frequent open letter (48 words). 16 words contain a doubled letter.

Full list 52

Common words

antimalarialsbicentennialsconfessionalsdifferentialsglockenspielsheterosexualsinstrumentalsintellectualsinvitationalsnonspiritualsprocessionalsprofessionals
antimalarialsbicentennialsconfessionalsdifferentialsglockenspielsheterosexualsinstrumentalsintellectualsinvitationalsnonspiritualsprocessionalsprofessionalsproportionalspumpernickelsquarterfinalssupernaturalswhippoorwillsagrochemicalshypotheticalsplanetesimalsagrichemicalsanticlericalsanticolonialsbimillennialscounterspellsfluorouracilsforestaysailshemorrhoidalshexobarbitalshyperarousalsinterglacialsinterstadialsmicrocrystalsmisappraisalsmultichannelsnonessentialsnonnumericalsnonuniversalsphosphatidylspreceptorialspresbyterialsprocathedralspyrocatecholsquinquennialssecobarbitalssprachgefuhlsstigmasterolssubprincipalssuperspecialssupplementalsultraliberalsultraradicals

About this list

Words
52 (17 common words)
Common example
antimalarials
Rare example
ultraradicals
Doubled letters
16
Ending in S
52
Most frequent letter
A (48)

Questions

How many 13-letter words ending in ls are there?

52. 17 of them are common words.

What is a common example?

ANTIMALARIALS is among the common words in this set.