grumbling
1 of 2noun
grum·bling ˈgrəm-b(ə-)liŋ 
plural grumblings
1
: a mutter of discontent : complaint
Operators of bars and restaurants, who hear the first-hand grumblings of customers on the boardwalk, tend to oppose the ordinance.
Kevin Robinson
Kevin Robinson2
: a growling or reverberating noise : rumbling
On a shorter timescale, researchers and governments are working together to detect the first grumblings of an earthquake and alert communities that might be affected. Eva Botkin-Kowacki
Eva Botkin-Kowackigrumbling
2 of 2adjective
1
: expressing discontent especially by muttering
Meanwhile, grumbling fans wondered why the new coach hadn't hired any Ohioans for his staff. Erick Adelson
Erick Adelson2
: making a low, heavy, rolling sound
There was no sound, still, but the rushing river and the grumbling, looming storm. Susan Cooper
Susan Cooper grumblingly
ˈgrəm-b(ə-)liŋ-lē
adverb Some marine park wardens were doing a quick flyover, perhaps to check that we weren't poachers, and Al grumblingly went below to answer the crackling radio. Tony Perrottet
Tony Perrottet 
Word History
First Known Use
Noun
1598, in the meaning defined at sense 1
Adjective
circa 1616, in the meaning defined at sense 1
grumbling 1 of 2
adjective
as in complaining
Synonyms & Similar Words
Relevance
- complaining
- griping
- whining
- protesting
- fussing
- squawking
- kvetching
- impatient
- unforgiving
- uncompromising
- unyielding
- intolerant
Antonyms & Near Antonyms
- abiding
- enduring
- forbearing
- patient
- uncomplaining
- tolerant
- accepting
- resigned
- forgiving
- willing
- long-suffering
- indulgent
grumbling
2 of 2verb
1
as in screaming
to express dissatisfaction, pain, or resentment usually tiresomely he grumbled about how sore his feet were after standing all day Synonyms & Similar Words
- complaining
- screaming
- whining
- moaning
- muttering
- growling
- murmuring
- grousing
- griping
- bitching
- whimpering
- bellyaching
- kvetching
- worrying
- squealing
- nagging
- squawking
- yammering
- crying
- wailing
- kicking
- carping
- hollering
- caterwauling
- grouching
- grumping
- whinging
- grizzling
- whingeing
- yowling
- repining
- bleating
- inveighing
- keening
- fussing
- protesting
- yawping
- beefing
- maundering
- crabbing
- croaking
- sobbing
- kicking up a stink
- yauping
- quibbling
- kicking up a fuss
- caviling
- fretting
- lamenting
- stewing
- blubbering
- bemoaning
- cavilling
- bewailing
- deploring
- quarrelling (with)
- quarreling (with)
- objecting (to)
Antonyms & Near Antonyms
- rejoicing
- delighting
- tolerating
- accepting
- taking
- crowing
- enduring
- applauding
- bearing
- cheering
- commending
- countenancing
2
as in rumbling
to make a low heavy rolling sound heavily loaded trucks grumbling as they passed over the steel bridge Synonyms & Similar Words
- rumbling
- growling
- rolling
- lumbering
- bellowing
- booming
- drumming
- thundering
- introversible
- introversion
- introversions
- introversive
- introversively
- introvert
- introverted
- introverting
- introvertish
- introvertive
- introverts
- intrude
- intrude (upon)
- intrude upon
- intruded
- intruded (upon)
- intruded upon
- intruder
- intruders
- intrudes
- intrudes (upon)
- intrudes upon
- intruding
- intruding (upon)
- intruding upon