Or search: bearable, passable, tolerant, allowable, resistant, endurable, sufferable, permissible, supportable
3 Syllables: SUU
admirable, favorable, miserable, preferable
4 Syllables: SUUU
answerable, favourable, honorable, honourable, knowledgeable, measurable, memorable, pleasurable, profitable, separable, venerable, vulnerable
4 Syllables: USUU
desirable, discoverable
5 Syllables: USUUU
abominable, considerable, dishonorable, dishonourable, incomparable, incorrigible, indomitable, inexorable, innumerable, inseparable, insufferable, insuperable, intolerable, invulnerable, irreparable, recoverable, unalterable, unanswerable, unconquerable, unfavorable, unfavourable, unutterable
5 Syllables: UUSUU
undesirable
6 Syllables: UUSUUU
inconsiderable, unendurable

Found 43 words across 6 groupings.