| 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. |
| irreverence |
lack of reverence or respect, or an act or utterance that displays this lack. |
| irreverent |
not having or showing reverence or respect. [2 definitions] |
| irreversible |
impossible to reverse, turn back, or alter. |
| irrevocable |
impossible to take back, undo, or cancel. |
| irrigable |
able to be irrigated. |
| irrigate |
to water by artificial means, as by pumping and spraying, or by man-made channels from a natural source of water. [2 definitions] |
| irrigation |
the supplying of water to land by man-made means to aid in growing crops. [2 definitions] |
| irritability |
the quality or condition of being irritable or easily angered. [2 definitions] |
| irritable |
easily annoyed or angered. [2 definitions] |
| irritant |
causing or tending to cause irritation, esp. physical irritation; irritating. [2 definitions] |
| irritate |
to anger or annoy. [4 definitions] |
| irritated |
annoyed or made angry. [2 definitions] |