From The Complete Rhyming Dictionary by Clement
Wood:"Rhyme is the identity in sound of an accented vowel in a word...and of
all consonantal and vowel sounds following it; with a difference in the sound of
the consonant immediately preceding the accented vowel. If a poet
commences, 'October is the wildest month' he has estopped himself from any
rhyme; since "month" has no rhyme in English."
The following is a list of English words that are difficult to rhyme
(the rhyming word is foreign, dialectical or obsolete) or have no true rhyme at
all:
Word Rhyme
aitch brache , taich
angry unangry
angst
breadth
bulb
carpet charpit
chimney timne, polymny
cusp wusp
depth
eighth
else
exit direxit
fiends teinds, piends
filched hilched, milched
filth spilth, tilth
fifth
film pilm
fluxed luxed, muxed
glimpsed
gospel
golf
gulf
jinxed outminxed (?)
leashed niched, tweesht
liquid
mollusk
mouthed southed
month
mulcts
mulched gulched
ninth
nostril
oblige
oomph sumph
orange borange
pint jint
poem phloem, proem
pregnant regnant
purple curple, hirple
puss schuss
rhythm smitham
scarce clairce, hairse
sculpts
silver chilver
sixth
spirit squiret
tenth nth
tsetse baronetcy, intermezzi
tuft yuft
twelfth
width
window indo, lindo
wolf