| irreducible |
not capable of being reduced to a simpler or smaller condition, form, or quantity. |
| irrefragable |
impossible to refute or dispute; undeniable. |
| irrefutable |
impossible to refute or disprove; indisputable. |
| irregular |
uneven in shape, arrangement, surface, or the like. [10 definitions] |
| irregularity |
the condition or quality of being irregular. [3 definitions] |
| irrelevance |
the quality or condition of not being related or connected to the matter or situation at hand. [2 definitions] |
| irrelevant |
not related to or connected with the matter or occasion at hand. |
| irreligious |
not practicing or believing in any religion; not motivated by religious considerations or precepts. [2 definitions] |
| irremediable |
impossible to cure, repair, or correct. |
| irremissible |
not subject to forgiveness; unpardonable. [2 definitions] |
| irremovable |
impossible to remove or obliterate. |
| irreparable |
impossible to repair, restore, or rectify. |
| irreplaceable |
impossible to replace or duplicate. |
| irrepressible |
impossible to restrain, suppress, or keep under control. |
| irreproachable |
not deserving blame or criticism; blameless or faultless. |
| irresistible |
impossible to withstand or resist. |
| irresolute |
uncertain or wavering. |
| irrespective of |
without consideration for; regardless of. |
| irresponsible |
having or showing a lack of responsibility. [3 definitions] |
| irresponsive |
responding slowly or not at all, as to medical treatment; unresponsive. |
| irretrievable |
impossible to recover or repair. |