Here's what rhymes with bidirectionals.
sectionals Words that almost rhyme with bidirectionals
professionals sentinels processionals vegetables festivals spectacles parables genitals tentacles decibels retinas caravels collectibles confessionals carousels feminines pentacles collectables carrousels recessionals messages premises sentences medicines terraces denizens pedestals replicas attendances heterosexuals pendulums paragons trellises carillons nebulas deputise ageratums djellabahs ghettoises homosexuals skeletons adenomas regimens paraprofessionals nonprofessionals comestibles semblances sensitise pentagrams subprofessionals specimens comparisons kettledrums temptresses expendables semiprofessionals desensitise resemblances sempstresses nonclericals indispensables exoskeletons