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нелишне adj. stresses
Gruzovik	it is not out of place; it does no harm
нелишний adj.
gen.	not useless (Alexander Demidov)
Gruzovik	not out of place; necessary
Makarov.	not superfluous; useful
math.	relevant
obs.	unsuperfluous
нелишне adv.
gen.	not out of place (Anglophile); useful; worthwhile

нелишне: 10 phrases in 4 subjects

Bookish / literary	1
Diplomacy	1
General	7
Politics	1