1. Of very poor quality or condition
   - deplorable, miserable, woeful, wretched 
2. Unequivocally detestable
   "execrable crimes"
   - abominable, detestable, odious 
3. Deserving a curse
   - damnable

See also: cursed, curst, hateful, inferior

• irredenta
• irredentism
• irredentist
• irreducible
• irreducibly
• irrefragable
• irrefutable
• irrefutably
• irregardless
• irregular
• irregularity
• irregularly
• irrelative
• irrelevance
• irrelevancy
• irrelevant
• irrelevantly
• irreligion
• irreligionist
• irreligious
• irreligiousness
• irremediable
• irremediably
• irremissible
• irremovable