1 noun later idea, remarkathsmaoineamh masc1 c m uhe had an afterthoughtrith athsmaoineamh leis, rith smaoineamh leis níos déanaí2 noun sth done etc laterthe conservatory was an afterthoughtcuireadh an seomra gréine leis an teach níos moillethat was done as an afterthoughtde thoradh athsmaoinimh a rinneadh é sin