• unirritabel,
• unirritible,
• unirritabble,
• unirritabele,
• unirritbale,
• unirritablle,
• unirratable

• unpredictable,
• unsolvable,
• unbearable,
• unbelievable,
• unthinkable,
• undeniable,
• irritable,
• unchangeable,
• inevitable,
• uncomfortable.

The adjective form of "unirritable" is "non-irritable".

The plural form of the word "unirritable" is "unirritables".

The singular form of the word "unirritable" is "unirritable". The word does not change in its singular form.