adj. 25B6; verb such ideas were diffused widely in the 1970s : SPREAD, spread around, send out, disseminate, scatter, disperse, distribute, put about, circulate, communicate, purvey, propagate, transmit, broadcast, promulgate.
a diffuse community centred on the church : SPREAD OUT, scattered.
a diffuse narrative : VERBOSE, wordy, prolix, long-winded, long-drawn-out, discursive, rambling, wandering, meandering, maundering, digressive, circuitous, roundabout, circumlocutory, periphrastic; Brit. informal waffly.