Irregular and Off-key

Irregular adjective - Departing from some accepted standard of what is normal.

Off-key and irregular are semantically related in abnormal topic. In some cases you can use "Off-key" instead an adjective "Irregular".

Nearby Words: irregularity, irregularly

Off-key adjective - Inaccurate in pitch.

Irregular and off-key are semantically related in not sounding right topic. Sometimes you can use "Irregular" instead an adjective phrase "Off-key".